Requires 4 kills to activate.
For eight seconds, the user and their squadmates gain 50% increased critical hit chance per shot. The affected members will begin to glow red. This Killstreak synergizes beautifully with weapons or Attachments that increases critical damage, such as the Big Willy or Laser Sight.
Sanchez, the second hero, uses this Killstreak.
- Critical Boost was also a Killstreak in Strike Force Heroes 2. There, it was used by the General class.