As Imperial, 75% of the games are Huttball. Most PUGs are basically Huttball professionals.
Some other fun things to note, tanks with a "death grip" (specifically Assassin/Shadow Tanks) can save a bunch of time by chilling out in the enemy base and pulling the ballcarrier up to them.
The easiest and fastest way to score is for a Juggernaut to jump into the enemy Pit and then leap up to an opposing player on their ledge (or be gripped up).
When there is a ball carrier, move ahead of them and get just past a hazard.
Stealth players can not catch a ball.
Also, I love Huttball. =)