It need 2 v 2 n snowball mode..
In order to get 1k ++ exp is to raise ur mission..
In the game ask ur mates to freeze himself by shooting the ground or facoing the wall n shoot at it..
next..u must defreeze ur mate n get 1 mission..do that as many time u can within the time limits..the highest it can go is 255 mission n then it restart back to 0 ..but even though ur mission is 0..the exp wills till continue from ( 255 mission point )
The highest i can get is 1567 exp n gp ..
Thx me if help ..