Still Unexplained

0:29-0:50

1:10 how did that sniper have SO much health, did a medic breeze by earlier or something? the first two 60+70 = 130 and he's using razorback, not danger shield then he heals for like 26 or some then takes another 56 before dying to a 4th hit  He could survive with 185 overheal, but there was no medic in sight.