I spent most of last night's games smushing people in a manta. And yes, learning tactics and such too. In fact, I've learned several things...
The main cannon on the hummer is a very very nice tool, not only for offense but defense too. The key is to park the thing in just the right spot and use it as a long range instagib sniper rifle.
Avoiding AVRiL's with a manta is relatively easy now. If it's incoming from the front, if you time it right you can jump then squish at the right time and the missile will go right over top of you and slam into the ground. If it's coming from behind, jump/squish combo's when it gets close enough will usually cause it to smash into the ground behind you - provided it's close enough to you.
I've become a relatively good reaper pilot, able to avoid ARViL's is a talent... bigtime.
I'm not saying Onslaught is played out... just the Torlan map. God I can't wait until retail is out.