Plagueofburia on interlopers.net seems to be having problems with shading on his blender model. This video is a quick explanation on how to fix his problem.
And yes this will export fine to the source engine
On this page of the site you can watch the video online Quick Tip - Blenders edge split modifier with a duration of hours minute second in good quality, which was uploaded by the user Abraham Brookes 23 June 2014, share the link with friends and acquaintances, this video has already been watched 443 times on youtube and it was liked by 1 viewers. Enjoy your viewing!