Kill hackshield
Update Hackshield.
Switch to PunkBuster, GameGuard etc...
Remove some of the maps.
Add new maps.
Add Wake Island Map.
Make the stats of the guns better.
Make changes to the ranks.
Change the HUD of the game.
Add new items, weapons to the game.
No ban/suspend mistakes against players.
Remove bugs, glitches etc.. from Combat Arms
Remove every single spec.
Remove the NX virtual cash.
Faster help support from Nexon. Like not wait 4 months to get back your email account.