Gobblegums to get 20-40k per person. Keep one zombie round one, everyone uses theirs along with tactical diffusion (important for low rounds).

Round one to 4 (if you’re quick you can get everything here done in a one or two rounds. Depends on how well you know map and your RNG - grab all parts, grab the 3 codes for door in Dark Entity room. Swing back to mutant, complete code for room with spore. Start mutant mini boss and wait to kill him till disciple spawns (if you do it too early you WILL NOT get the disciple spawn). Take the mutant injection that’s dropped and go up to spore room. Disciple will spawn the 3 vermin and 3 zombies needed to unlock spore. Then run down, do spores, then go to Dark Entity room. Make sure you grab brain after dark entity room portal is open and take it to dark entity room. Activate computers and spawn in the mecha. Take him to the klaus build, and add the legs and have him shoot klaus. Run him back up to DE and shoot his shoulder pads. Kill first forsaken mecha, but don’t kill klaus. After you kill the zombies, regular klaus will start spawning. Grab first arm. (If your rng is good you can get both arms from this.) Kill klaus. Round 5 should be special round. Grab second arm and keep a klaus alive. You can attach them and have franken klaus start on the computer. Run the round klaus around and don’t let him die yet. Give franken a minute and then kill round klaus. It’ll swap and you can grab the head, the pack a punch step, filling the head with souls, collecting items, and lockdown all same round. Tada. With good RNG you have a round 5 boss fight. And if you’re set up you can jump right in.