I think this mod is impossible to beat the vanilla campaign without cheating.
In Castle Eggman Act 2 he simply doesn't get enough velocity to make it across the gaps with the swings and at one point you need to get to a bridge and even as Amy I could make it across but since Doomguy is so slow I couldn't get across even with the rocket launcher. No matter what I did I could not get past that gap or finish the level.
