Reign of the Undead - Revolution

Played tunnel, alone, level Mix.

I lasted 10 seconds due to red orbs, still i was standing on a med kit.
Calculate how many that was

A change please?

Happens many times to me also 3 of us went down same time to red ball last night, seems same amount of balls for 1-3 player as 10 players.
They spawn next to cabinet as I'm getting turret or gas-mask at start of round (bad spawn place)

red balls are ok...the bubble sucks....bubble imune voor damage wil fix it