If you are the only one left, fleshpounds spawn afterwards will only have health of one-man worth. So 5 alt fire from axe will kill him. Axe him, back off, axe again, this time keep alt-fire the fleshpound. He will die before he hits you.
Unless you make axe instan-rage a pound, you cannot stop the last man if he's a zerker. Even you make him not able to stun scrakes, he can just keep kiting those scrakes. If number of scrakes is lower than 5, you can just keep far enough to make them auto-die. If you get too much scrakes left, just take them down one by one. 100 health is much more than enough to exchange hits with a raging one-man scrake with even a machete.
In fact I really dont see WHY the last man should die. Just because no one like to watch someone solo 100+ zeds? Why dont you try NOT TO DIE or just change server? If people insist to rambo, nothing in this world can stop them. Breaking line of sight can already make those whatever thing they cannot solo to focus on the bigger groups of flesh meat instead of the rambo.
Anything more changes to scrakes and fleshpounds will only kill the purpose of berserkers even exist. Really? You want a berserker to back off to hope that scrake to change his target AND THEN face his butt towards the endless wave of gorefasts and crawlers just to back stab a scrake? Why I have to risk that much? Why dont I use hunting shotgun, LAR, xbow, M14?
Now a berserker who stick with the team already having enough hard time. Why we have to suffer even more just because some people like to rambo? I remember one time a played berserker in a full 6-man game on biolab. I dont want to block the line of fire of teamates. So I just croach every wave. Over 50% of the time I am just sitting there doing nothing. Because nothing able to get close enough for me to hit. Sometimes when mutiple scrakes/sirens/husks spawns, what I can do is take damage. Because jumping around is clearly blocking the line of fire, I will block evey shot my teamates try to save me with.
So what I could do is keep croaching. Playing with a good team resulting in I have nothing to do, or just being a meat shield. If I go support/demo or whatever, we will ahve enough fire power to keep everything far enough. Now if I go berserker, the only reason is if things really getting bad, our team still stand a chance, we will not be playing for an hour to die at the ast few waves.
If I was any other perks, NO ONE will be standing (well, croaching actually) in the middle of the hallway. But hell, I was. So I'M BLOCKING the way no matter what. Just like those clots should be DEAD if the firebug use other perks. But what is happening is a bunch of burning clots' there. How can you say this is NOT BLOCKNG the sight?