13 from last strike
87 from Sickle

Sickle gets boosted by his current power, last strike is arbitrary. So you took 100 damage from abilities, 0 from gun damage.

Now here's the thing about WCS. It calculates ability damage regardless of weapon damage. Where the game will not allow a player to hit others after the point where they "die", the ability damage, if it procc'd, will still happen. So there can be trades involving "gunfire", unlike a normal game of CS.