I work for Delta Force and i can pretty much guarantee you will have a great time. What was the £18 for? You shouldn't be paying more than £5 entry and £5 per 100 balls.
Some battle tips having observed hundreds of punter games at DF.
1. Don't fire straight ahead, move down one side and shoot diagonally.
2. If you are feeling brave, stand up, hold your gun by your side and walk down the edge of the game zone. no one is stupid enough to walk down the edge of a game zone without their gun up... right?
3. Communication. Let people know what you are doing, get them to help you. A little bit of covering fire works wonders.
4. Pick a gun that's heavier, more gas, more pressure.
5. Keep your paint warm, it works better when it hits people and it won't shatter in your gun and gum it up.
6. Clean your lens with fairy liquid as provided as soon as you get your mask. Do it after every game. Make sur eyou can see out of it properly before you go out to the game zone.
7. Watch your flanks. Everyone gets too focused on what is directly ahead of them, they never see the shot from the side coming.