Infuriating

The last game played last night in Fathom was infuriating. Near the end of the game, I Spartan charged the enemy from behind and he doesn’t die. I turned and shot him a few times and he still doesn’t die, BUT I get shot twice and I die. Everything seems to lag for me for some reason and I notice I’m moving slower than everyone else. What’s up with that, 343??? Care to explain why when I’m at full sprint from the get-go, all my teammates who were behind me are now sprinting faster than me? Also, teammates also pick up weapons faster than me even though they’re 2 steps behind me. Absolutely infuriating.