Well, i would just like to share my ideas with the community with what i think MIGHT work to possibly get the unlimited death machine. You can try some of these out and verify which do/do not work. EDIT: You may also share some ideas of your own if you wish!

1. Wait for the pentagon thief round to start with a death machine powerup/ you still holding a death machine available. The point is to allow the pentagon thief to steal your death machine that you are holding in your hands. Then, kill the pentagon thief, but keep the weapon you DON'T want in your hands while doing this. You should recieve in return your death machine with no timer (unlimited) but lose one of your guns (I personally think its worth it ) OFFICIALLY RECALLED AS PATCHED.

2. Get a death machine powerup to appear right next to (really close) to the bowie knife. You must have 3000 points to buy the bowie knife before doing this. Then, buy the bowie knife, and while you are twirling it in your hands, pick up the death machine. Just as the three gun glitch works, this should also take away your knife (you won't be able to knife again for the rest of the game) but you should have a 3rd gun slot which SHOULD BE the death machine with no timer (once again, unlimited). EDIT: Some say this works, some say it doesn't, so I am not sure whether or not to remove it, so I will just keep it here just in case.

3. (I have a lot of doubts on this one, but its worth a shot ) Get a death machine power up to appear on the ground (anywhere, just so you can reach it). You will need to pick up the death machine, but at the same time, press/hold the grenade button. There should be a moment where there will be no gun in your hand when performing the process of taking out the grenade, which should allow the death machine to take your third slot. This will only happen if you continue to hold the grenade button. (It might kill you, it might not, I am not sure, but the whole point is for you to die while the death machine takes your third slot). Wait for the powerup to go away completely, and get someone to revive you (this is where my doubts are, because i think you might die before the powerup goes away). If you do die before, then this will not work.

4. USER SUBMITTED: Perform the three gun glitch using the Bowie Knife, and while there is no gun in your hands, pick up a death machine powerup. You then kill yourself and get someone to revive you after the powerup goes away. Once you are picked up, you should have unlimited death machine.

Like i said before, I am just expressing my original ideas with the community so i could possibly get something out of it. I don't see anyone else trying to figure out a way, so that's why i made this post, to TRY something. If you can get ANY of these to work, please give me full credit, plus rep, and thank the topic. Also, please inform me of the ones that DO NOT work so i can remove them/remove the entire post(if needed).

EDIT: If you guys have any ideas/theories on the Infinite Death Machine Glitch, please post below and i will add it to the post. This is officially the Infinite Death Machine Thread! Keep the Topic Alive!
-Dell