Tactics
Communication
Another thing that is useful in paintball is communication
If your on a team make up some hand signals communication is #2 when playing paintball team work is #1, use a point man, the pointman will be the spotter and the one giving the signals to the players where the other team is moving to and which direction to concentrate their view and fire
try to limit your communication to just hand signals so it doesn't give away your teams position and when the firing starts, then you can communicate out loud
More coming as soon as I get time