This is a mostly fun set of episodes to go through in VR with QuestZDoom- which is how I went about playing the entirely of Freedoom. Each episode brings larger maps and a (for the most part) solid difficulty curve. By episode 4, you're going to see 200+ monster counts and while that seems daunting its all manageable with careful play.

It's too bad that the campaign ends off with what's basically a troll level, and the last few missions had a few too many random ambushes for my liking. Still had a great time up to that point at least.