I have Cysis Warhead, and just now I installed the second disc with Crysis Wars.
But when I launched the game it said that there are updates available and brought me to this site: http://www.gamesas.com/support

But there are more than one updates. So, my question is this.
Should I go and install each one of those updates starting with Patch 1.1?
Or just download the last patch 1.5?

there is only one Crysis Wars patch its about 500 MB
the Crysis Warhead patch isnt important to play multiplayer
it fix only singleplayer errors of WARHEAD
so just download the Crysis Wars 1.5 patch and fine

Hi there,

As above, Warhead and Wars are completely separate games so hey have separate patches. The Warhead 1.1 patch is for Warhead. The Wars 1.5 patch is for Wars

This is the patch you want for Wars: http://crytekfiles.com/files/CrysisWarsPatches/CrysisWars_patch5.exe

Enjoy!