ArmA 2 cracks
 

From what I recall every game developed by Bohemia Interactive has FADE as protection. And this one is no different. The FADE protection is linked to the CD-key, which the protection checks if it's anoriginal one. Additionally ArmA2 has SecuROM which does the classic CD-check. Any crack out it's bypassing not only the CD-check, but the CD-key check too . Which from what I recall it's still illegal in many countries.
Same goes for every crack issued for Operation Flashpoint and ArmA.

I suppose that depends on how you look at it wolfsrain, because you can install the game with 'any' key anyway. There is no stage in-game where you would be asked to enter it which is bypassed by one of these fixes. I wouldn't think of it as bypassing the key check. So, are you pressing to get these fixes removed from here then?

Well, it happened with the ArmA before and it would be better to stay on the safe side. The game will not asked to enter it again, but the FADE will check at times for disc and an original CD-key. If Fade doesn't find the disc, you get bad accuracy and start to have some nasty things in your gameplay. If FADE doesn't detect the original key, you are turned into a seagull. And all the cracks for ArmA, ArmA2 and OP Flashpoint bypass the FADE CD-key check.