Haha yeh, well the mod was made in CryEngine 3 (Crysis 2 MOD SDK I think), I was just happy to have prone and lean.
Crysis 2/3 needed those.
Indeed they did. And no, this was made in the CE3 SDK. If it were made in the C2 MOD SDK, then you would've downloaded it and then installed it into Crysis 2, rather than this which uses the CryEngine 3 launcher (yes it has a very similar design to Crysis 2/3)