just in case you dont know chaps:
Food
Food can be purchased from either local town.
Brought with you and cooked, using your own stove. Or on the bigger games food can be purchased on site.
Pyrotechnics
Only official MK5 Thunderflashes, 9mm Blank firing grenades and standard smokes are permitted within buildings.
MK9 Thunderflashes and 12 gauge blank firing grenades are only permitted outside buildings.
Military screening smoke can only be used in open areas, anyone found using them in buildings or placing them near an open door/window will be removed from the game.
Pea bombs and other unofficial pyro are not permitted.
No pyrotechnics can be used after 22:00 hours.
Site Limits
370 fps - AEGs
500 fps - Sniper rifles
450 fps - Fixed support weapons
Sniper rifles have a 25m minimum engagement distance.
Fixed support weapons have a 25m minimum engagement distance and will only be used by designated Stirling Airsoft staff.
All fps limits are the maximum and are set to ensure safety.
We reserve the right to test any gun we believe to be exceeding the stated fps limits.
Any gun found to be over the fps limit will be removed from play.
Any player found or suspected to be engaging targets with a sniper rifle at a distance less than 25m will be removed from play.
Marshalls
Marshalls operate at all times in the games both overtly and covertly.
Covert marshalls will identify themselves as marshalls if they are required.
Overt marshalls wear high visibility vests at all times and at night wear chemical glow sticks.
A marshalls decision is final, anyone arguing with a marshal will be removed from the game.
Cheating is not permitted, all marshalls are airsoft players and understand some hits aren't felt. Anyone found to be deliberately cheating will be removed from the game once identified by a marshall.
excert taken from stirling airsoft forum