Is it just me or Opposing forces gets too much annoying in last few chapters

I liked most of the part of opposing forces, it has some nicely balanced difficulty. But from Foxtrot uniform chapter, the game just keeps throwing enemies at you in name of difficulty and the enemies just keep eating bullets.

I liked the sewer part where you have 6 voltigore, I had fun blowing up two of them with hand grenades, and then had one chase me so that i can blow him up with C4s, and then sniping the rest of them through shock roach and switching to Saw gun in between.

But everything after that just feels like a mess, where enemies are being thrown at you, and you can die in few hits. I had enough of this after some time, and enabled god cheat to clear parts where enemies just keep on spawning.

I will fight final boss in sometime, and I am already thinking of amount of jumping with barnacle gun i have to do (barnacle gun does not work for me, so i have to use noclip).