5-8 Bleed Stacks on Critical Hit.
1-4 Bleed Stacks on non-Weak Spot Hits.
14-20% Ranged Critical Chance after Melee Kill for 2.5 seconds.
4.5-6% Critical Chance for each expended round in your weapon (resets on reload).
For Hordes mostly light spam throwing in pushes every now and then.For single target heavy attack, light attack repeat.
You can swap your [Main Stat] Max Health for 1 additional Wound(s) for a little safety if you are not fully confident you wont down.Other notable options if desperate are Damage Resistance (Snipers) so they dont chunk your health if they hit you, Damage Resistance (Bombers) to allow you to pass through gas clouds with less corruption & Revive Speed (Ally) to speed up saving your team.
Shredder Frag Grenade should only really be used to help get revives.Weapons Specialist & Always Prepared will make it so you wont need to reload to frequently in high intensity situations.