Hitbox sounds no damage counter an finisher does not finish enemy...

So i was just in a game a pathfinder grapples up top but flings himself away from the building but yet manages to be on top I threw arc stars perfectly on him mind u 4 of them, they dont hit but no cover to take the arc star damage, finally he runs across I shoot him all I get is hitbox sounds ok. So I have high ground holding it I jump down make quick work of gibby his team is not near him so I use my finisher rather then waste ammo finisher goes off I run because I hear foot steps near me ok cool I go upstairs shield up literally yellow backpack.  next thing I know I hear someone being picked up by a lifeline on his team.... I see the pathfinder I knock him after layering this kid multiple times he dies relief 1 guy to go completely lasered this lifeline but does not die so I lose cause your * is broken I see tons of * cheaters on this game an I'm bout done with it, its suppose to be fun yet it's frustrating being cheated out of a win come on this dying after u made a corner type * is annoying I'm officially done with apex till it's fixed people say u cant cheat on console I beg to * differ