proven technique is to engage for a second (aka snapshooot but lay down a lot of paint: think like a hammer or broadsword for just a second), just to put people into cover, then retreat. If they both go for cover, be sneaky and fall back quietly. If only one goes for cover and the other can see you retreat, then run like hell until you are out of sight and set up an ambush. I have beaten a 6v1 situation on a larger field this way. Don't fall back in a straight line for your side of the field; you will run out of room. Instead play ring around the rosey with these guys and fall back and bump to a side. If you are lucky you can get all the way behind your opponents. Everytime you fall back move laterally to your opponents, but vary it so they can't predict where you are going. Once you have whittled down the opposition, then you get to play more of a ghost flanker and hunt down the opposition one by one. hope this helps.
oh, and when you do re-engage after falling back, try to single out your opponents. With you running around in their back field they are likely to get freaked, so you can generally single one of from the horde of bloodthirsty OPFOR. and when their numbers dwindle, they get more freaked.
The Paintball Sniper has already done the first step: convince you they don't exist.
Allied Superior Meritorious Service Medal recipient: D-Day 2008
"There is no "fixing" a Tippmann ... if it didn't work, there is only one reason .... you tried to clean it. Any problem a Tippmann has can be easily fixed by adding more dirt, preferably to the internals, followed by 3 drops of oil." -- Acara