User blog comment:Imrlybord7/TAR-21 vs UMP/@comment-1932673-20100329125759

pah, the UMP has MORE recoil than the TAR, which has longer range to boot, and the TAR's recoil is usually from side-to-side, and bullets veer off to one side often anyway, therefore, the TAR's recoil usually doesn't make a difference except at extreme ranges, ranges at which the UMP is USELESS.