It should work.
IW hasn't patched anything since the begging of 2013.
It would always work for me, and now everything on MrFox's hack works except the UAV. Fullbright, Chrome, Thermal all work fine, which I've always used, but the UAV has stopped working for me. I have tried clicking it before and after doing the other hacks that I want to use, it just won't work.