Looks like a typical smooth-groups error to me. Assuming you work in the 3dsmax, you should select all the faces and use the auto setting to get rid of that. I have noticed that setting all the faces to one smooth group can give you this kind of errors. I hope that helps :)
I haven't really encountered any problems when installing Crysis Wars SDK tbh, not sure where are the issues coming from. @Cody, if it asks for root then give it the root, pretty obvious ey? :) If you did and it still don't work, open regedit and look for the sdk entries, the root path will be there as well as in the…