1-4 Bleed Stacks on non-Weak Spot Hits.
5-8 Bleed Stacks on Critical Hit.
3.5-5% Critical Chance on Weak Spot Hit until your next Critical Hit. Stacks 5 times.
1-4 Burn Stack(s) on Critical Hit to a maximum of 3-12 Stack(s).
If Shredder Grenades preferred - remove Focused Fire and jump over to Shredder instead