To be more topic-friendly, let me continue.
If you want something individual, and unique, how about the following:
-Authentic fallschirmjager uniform
-Alternate History uniforms. (Think civil war meets OIF). Get some grey BDUs and RAID mod them, throw on a confederate flag and use a mix of modern gear and vintage stuff.
-Video game/movie characters. Get a uniform like the S.T.A.R.S. or Umbrella Corp. characters in Resident Evil 2 or your favorite action movie.
-Civilian Contractor/PSD uniform. Jeans or cargo pants, polo shirt or t-shirt, sunglasses, a high-speed deuce kit, and either an AK or pimped M4. Think - if someone asked you to go overseas and kill people for money, what you you wear?
-OPFOR outfits. Go shopping at Arab World, and use an AK. Wear some MC Hammer pants and an old Stussy t-shirt with some holes in it. ChiCom chest rig, converse all-stars, and an AK with stickers on it. Think - If I were a kid living in some sh*thole country in the middle of a civil war, what would I wear?
Get creative. Remember, it's all in the details!