What are the top 10 best shooting games?

my list 10. Tom Clancy Rainbow Six Vegas---9. GTA SA---8. Battlefield 1943---7. Call of Duty 2---6. Rainbow Six Vegas 2---5. DOOM 3---4. Call of Duty World at War---3. Battlefield Bad Company 2---2. Halo 3---1. Call of Duty 4: Modern Warfare