A friend of mine has the same problem, he removed mwll folder under mods, and installed 0.3.0 mod but keeps getting "Your MWLL installation has modified files please revert them to their original state to play" error and game crashes shortly after launch for him when he launches mwll using launcher or running crysis with -mod mwll command.
I have given him default actionmaps.xml to put in his profile too and still same error, so does anyone have any ideas?
EDIT: Ok my friend said that md5 checked out for the installer he downloaded off the torrent, but he downloaded installer off the german mirror and after installing that one the error is now gone and he can play mwll just fine.... weird