1. head down
2. if moving to cover, don't stop halfway and turn back, it will hurt /more/
3. always look around the side of a cover, not over it, the lower you can be, the better
4. try not to get into a straight 1v1 shoot paint at eachother battle, you very rarely hit the other person
5. flanking is good, if you can get around someones cover, do it
6.remember to look around while engaged with someone, the second you get the "blinders" on and start looking at the person in frontof you constantly is the second you will be flanked
7. being out of ammo is not the end of the world, run dummy for your team, it doesn't hurt /that/ bad
8. long range shots won't work unless you know how to use the wind, i'm assuming you don't, so get closer
9.keep ya damn head down
10.get behind them
aside from that (and the multiple KEEP YA DAMN HEAD DOWNS) have fun dude, i've not been paintballing in a long time