Immersive MilSim (Gladius 5) and TacSim Rules

Please ensure you read all of the information on here. This document is subject to change and any changes will be notified to you. Once you have booked on, a full break down of rules will be sent to you. You can book on to an event at the bottom of this page.


Gladius 5:

These events are fully Immersive MilSim events designed to be as realistic as we can create it. This is not your average airsoft game and arguably isn’t a game at all. They are built around immersion and experience, with no winners or losers, just a great experience.

This event is designed to give both sides an immersive airsoft event and most events have all teams placed into one of two general categories, OpFor/CivPop and BlueFor. The OpFor/CivPop side will need to role play and embrace the characters given to them. They will generally be functioning as part of the local population and will need to weave into their other more sinister sides covertly. The BlueFor side will need to act accordingly in response to events happening on the ground. They are not always going to be operating in a theatre of war and at times will have to take a soft approach to dealing with both the locals and tasks presented to them. Both teams will have unique objectives to achieve, unknown to each other, and the event will follow the story that you create. Our Immersive MilSim events follow a narrative and story that has multiple routes, options and directions they can take. Ultimately, the event is dictated by player events in game.

Expected Behaviour:


OpFor players are expected to take on two roles 1) That of a civilian populace just going about their daily lives. During this time players will be expected to react as civilians would if a gun fight breaks out near them, be fearful of the foreign soldiers in their town with guns and also carry out reconnaissance and surveillance of foreign troops. 2) They will also play the roles of insurgents. during this period, players will take on a more hostile role. You will be armed (or have your weapons cached near by) and will be carrying out anti PCF actions such as ambushes, running guns and supplies, rioting, mortaring, and also carrying out probing/surveillance on enemy troops. We do not allow players to run up behind enemy combatants and shoot them in the back quickly hiding their airsoft gun and playing dumb. This is not realistic and if seen we will pull you out of the event for a period. OpFor players will be commanded by DS who will ensure you remain active against the enemy.


Players are expected to act as a modern miitary force follwoing rules of engagement. They will be required to work in 10 man sections under a complete platoon command structure. They will carry put patrols, guard duties, Quick Reaction Force, and peace keeping operations. If things go south in the village, they may be asked to carry out arrest operations and house raids. We do not allow BlueFor players to randomly shoot unarmed civilians!

MINIMUM Age limit for this event is 18 years old.


These are specified at the time of booking. DO NOT deviate from your forces uniform requirements as we will not allow you onto the event. If you are unsure about any uniform requirements, you can get in touch with us for clarification.


Timings for these events MUST be strictly adhered to for administration purposes. Once the event starts there will be no breaks, and no opportunities to return back to your car. You must be able to self administer yourself within the game (that means feed and water yourselves, and ensure you have adequate kit for sleeping, keeping warm, and keeping dry).

All players MUST arrive on site adhering to event timetables. Any late players may not be allowed on site. If you are running late due to reasons out of your control, contact us as soon as you know as such, so that we may try and accommodate you. It is important to understand that while we will do our best to get you onsite if you are late, for genuine reasons, we cannot guarantee it as the M.O.D may not allow it. Please also bare in mind that a lot of the sites we use have bad mobile phone coverage, so Facebook messages to the page may not be received by us until we get home after the event. A phone number will be provided for emergencies.



Most of the training areas we use for our Immersive MilSims are part of fully operational military training areas. DO NOT arrive in full combat gear as you may be mistaken for a serving soldier, which can have many implications, including that toward your own safety. Combat trousers and a civilian top are acceptable but we recommend all players arrive in civilian clothing and get changed on site.

Make sure you bring Photo ID with you of some kind and please make sure you book on using your correct name shown on your ID.

DO NOT use your nickname for booking. If the MOD decide to check our player list (which they suggest every event) when you are arriving, and you have booked on using a nickname that does not match your ID, or you have not brought any ID, they may refuse entry.

Park as directed by Legion Airsoft Events staff who will be located on the main gates.

Players arriving on site will be escorted in convoy to the parking area and directed from there. 

All players while being escorted onto site, must act in an appropriate manner. ANYONE deemed to be not doing so while being escorted will be refused entry to the event.

No alcohol on site!

Kit and Equipment Needed:

  • Bergen to carry kit.
  • Wet & Warm Gear such as a waterproof jacket and fleece (these MUST match your uniform requirements). It WILL BE COLD. Pack accordingly!
  • Sleeping system (sleeping bag and bivvy bag). You MUST ensure a method of keeping yourself dry while sleeping.
  • Basha/poncho sheet.
  • Roll Mat for comfort, some events will allow for cot beds to be used (this will be briefed specifically on event pages. 
  • Food & Rations (enough for 30 hrs. We suggest 2, 24hr military style ration packs).
  • Food and beverage heating/cooking kit. Hot food will be important (some events will not always allow for hot food).
  • Wash kit & Toiletries (this should be kept to a bare minimum). Toothbrush, toothpaste, hand sanitiser and baby wipes are all you need.
  • Normal airsoft gear.
  • Extra batteries, ammunition and pyro (Pyro will be on sale).
  • Torch/chemlights.
  • Spare change of clothing. (We recommend at a minimum you have a clean spare change of clothes kept in your car for the journey home. Spare underwear, socks and base layers should be kept in your Bergen.)

Event specific packing lists will be sent out prior to the event.

Ammo Limits and FPS Limits:

These ammunition limits are a general guide and may change, event depending.


All FPS limits are on a 0.2g bb.

  •  Riflemen: 600 rounds, FPS 350
  • Support Gunners: 2,000 Rounds, FPS 350
  • DMR: 300 Rounds (must be a semi locked gun and NO box mags), FPS 450
  • Bolt Action Sniper: 300 Rounds, FPS 500.
  • Pistols and other forms of sidearm: 50 Rounds, FPS 350

Snipers and DMR users have a minimum engagement distance of 30 metres. Within this MED a sidearm/secondary weapon (as per above) may be used.

TAG Rounds have a Minimum Engagement Distance (MED) of 40 metres. Within this MED TAG rounds are NOT to be used.

ALL GUNS MUST BE CHRONO’D AT THE DESIGNATED CHRONOGRAPH ONSITE. Random spot checks may also be carried out throughout the day

Any HPA guns MUST have a tournament lock with a rate of fire no higher than 25rps. Trigger spamming will NOT be tolerated.

Semi fire ONLY while inside buildings. Full auto fire is allowed into and out of buildings although remember, this is a military simulation event, so players will be expected to fire short controlled bursts. And riflemen will be expected to use single shot for most of the event.

All weapons MUST have a realistic rate of fire.

Any weapon that doesn’t obviously fall into the above categories, please contact us for further info.

No loose ammo is allowed to be carried on your person and magazines, and Moscarts, must only be reloaded in designated aid posts.

BFG’s & Pyrotechnics:

Only Enola Gaye, TLSFX, Tag Innovation, and Cloud 9 Combat pyrotechnic products are allowed to be used on site. Any other products must be cleared by us previously by contacting us at


Any form of blank rounds for Blank Firing Grenades can be used up to and including 12g SHORT. 

NO RE-LOADABLE MULTI-BANGS ARE PERMITTED. (in this instance we are referring to devices that fire multiple shots either consecutively, or simultaneously from one throw of the device, which can then be re-loaded. Multi-shot devices where only one charge/round is fired per throw, but have multiple charges or shots loaded ready for use, such as TRMR’s, are allowed, as are pre-made cardboard multi bangs such as TLSFX multi-bang grenades).

There is no limit to the amount of pyro you carry, however, this is supposed to be a realistic event so be sensible. 

BFG’s can only be reclaimed once the area is clear of combat OR if your whole team is dead. You may ask the enemy team to retrieve and hand back your grenade to you, although this is not a given so do not be surprised if they decline. No over arm throwing of BFG’s are allowed. Posting of grenades IS allowed in a controlled manor.

TAG Rounds: Tag rounds and their launchers may be used in this game. ANYONE using TAG launchers and rounds in a way that we deem unacceptable and/or unsafe or not within the spirit of the day will be removed from the site immediately with NO REFUND. 

Scenario for the Weekend:

The scenarios within our Immersive MilSim series’ are loosely based around real operations, set within a fictional narrative. The events are designed to be hard work, and challenging to even seasoned players with the emphasis being on the experience of ALL players, rather than focusing on trigger time. There is no winner or loser.

Radio Communications:

This will be sorted in the individual Facebook pages and briefings sent out to you during build up to the event, once you have booked on. As a rule of thumb, BlueFor will be controlled by a central operations room and/or a ground commander, and OpFor will be controlled by a ground commander and our DS, as well as at times also having a dedicated operations room..

Game Play:

We expect all players to play with honour and dignity. We expect all players to immerse themselves into the story that we have created and act accordingly. If you are playing the role of an unarmed civilian and gun fire erupts around you, we expect you to run in fear and either grab your fighting gear, or to just get out of the way. If you are playing the role of a soldier we expect you to be courteous and act accordingly around those people who you are policing or protecting. These events are not for the Johny Rambos of airsoft. If you act like a d*ck, we will remove you from the event.

Medic Rules:

Team specific medic rules will be forwarded to players once the event draws nearer. Each force may have a different rule for medics, so please bare that in mind during the event.

All direct hits to the body or holstered/slung weapons count as a hit. Ricohet’s DO NOT count as a hit. Gun hits to your “in use” weapon, do not count as a hit.

All players hit are to immediately go down where they are hit and either lie or sit and call for a medic. Minor role play when hit really makes the event immersive for those around you. DO NOT just wander around with your arm in the air. Wounded players may deploy smoke ONLY.

Blank Fire:

We use blank firing weapons at these events, and players are welcome to bring their own. It is a great way to add to the immersive nature of the event, BUT ONLY if all players act accordingly. All blank firers are to be treated as firing weapons. That means you must actively seek to get away from blank fire, and must not cross the path of a blank firing weapon system. If you do not seek cover when being engaged by blank weapons, we WILL kill you off. If you cross the path of a blank firing weapon that is suppressing the area you have just crossed, we WILL kill you off. Use smoke for cover, and then move.

Wounded players ARE NOT to be used as human shields.

That means if your wounded team mate is in the line of fire, you must extract him out of the area to safely treat him. Wounded players are only to be moved by carrying or dragging. Do not stand a wounded player up and let them move under their own power.


All players MUST wear UK compliant CE marked safety glasses or goggles.

All players MUST wear adequate footwear such as combat or walking boots. No trainers are allowed and we WILL turn you away for inadequate footwear.

All players are advised to wear hearing protection. LAE will provide basic provision for this on site.

Under no circumstances are ANY loaded weapons to be taken into the dedicated safe zone areas. All guns MUST be unloaded and cleared. Moscart shells, and the like, must be either fired off before entry to the safe zone OR left outside. You may load bb’s into a de-gassed Moscart shell, but absolutely no gassing of shells is to take place inside the safe zone.


Further, more detailed, rules will be sent once booking in is confirmed.

Play within the spirit of the game and enjoy yourselves. If in doubt, exercise common sense: DON’T BE A DICK!

We reserve the right to eject anyone from the game who is seen to be intentionally contravening any of these rules.