If you play tourney paintball then when your at the 50 behind an awkward shaped bunker ,then you position your hopper so it isn't in view to the other player ...
Try not to use your hopper to 'aim'....
OK,OK ...I admit ...
Tellin' you the truth I don't really find myself aiming! I fire a few balls off at where I think he will be and about as I fire I adjust the stream to where he really is ! It improves your game as each shot doesn't 'need' to be on target!!!
That's basically what snap~shooting is all about!!!
Your intentions aren't to necessarily 'hit' the player but to get his head in, (I take a deep breath) therefore as his head is in one of your players could move without him seeing him!!!!!!!!
Hoped that answered all your questions,mate (even though you only asked one!)
D'oh!!!!!