When i run Play MW2 singleplayer it opens but then i get error that says Couldn't load image 'Speciality_new'.

I have this problem too.

Move main/iw_china_00.iwd file to m2demo/ folder.

it didn't help

here you go

here you go

lmaobox told you to move your "iw_china_00.iwd" from "/main" to "/m2demo" and you still have it on "/main".

oh sorry i didn't know i should not keep it in there, but i moved it in m2demo

Thanks, it worked