Nando and me have come up with a possible task division that we could need in wars.
Most wars consist of 6on6 teams.
These teams usually consist of 3 riflers, 2 support and a sniper

Our suggestion is as follows.
Players will start practicing on a specific class and some on multiple. Why? Makes it easier to rock n roll.

One of us will let you know what we'd like to see you guys practicing as much as possible whenever u play ^^ Of course everything is open for discussion!

Your K/D does NOT matter while practicing, just make sure it improves hehe.
Assault/MG/Rocket are basically frowned upon in wars.

There's some awesome videos to be found on youtube where all of us could learn from ;)
Up to you guys if you want to take the time and learn from a few.
Personally enjoying this one:
http://www.youtube.com/watch?v=U4NoA6ssIYI

Just take a closer look at how these players play their game. Something we can definately learn from!