The Versus Mode Add-on for Resident Evil 5 (Xbox 360) has 10 achievements worth 200 gamerscore.
Win 30 matches in Team Survivors.
Score at least 80,000 points in Team Survivors.
Win 30 matches in Team Slayers.
Chain a 40-defeated combo in Team Slayers.
Unlock all selectable characters in Versus.
Win 30 matches in Survivors.
Win 30 matches in Slayers.
Defeat 100 players using physical attacks in Versus.
Chain a 20-defeated combo in Slayers.
Score at least 40,000 points in Survivors.