it is too easy.
If u play with cheats:
Link Dev-92 has posted 100% save.
if u won't play with cheats:
1-complete Consume events.(u get both upgrades & EPs).
2-buy whipfist power & skyjack Helli's then destroy strike teams.
3-Destroy Hives.
4-Evade from strike teams.
5-complete story missions
6-Collect landmark collectibles.
7-collect Hints.
8-and many many other things.
I have completed it & I have 100% Upgrades with no trainers.
[Edited by aminam, 6/19/2009 11:10:45 AM][Edited by aminam, 6/19/2009 11:11:25 AM]