First you have to build the guillotine, knock the lantern out of the air, place it where it needs to be, hit the 3 signs, follow the wisp, then kill zombies that come close to the guillotine. Then, it will let you

All 4 of your teammates have to be at least touching the guillotine

I've already done that, but every time I try to get into the mode it just restores me from when I placed it on the guillotine

Try getting everyone around it touching it, then put it down, then do it after you've completed all of the other steps stated above by BL00DSH3DDEM0N

Works better when everyone is crouched by the guillotine.

ExtremeRespawn wrote I've tried so many times, getting the time bomb and putting it on the guillotine, but when I press it and restore it, it doesn't let me in Infinity mode at all. I've pressed it as soon as the next round started and before. It be helpful if anyone can help me with this.

1- build guillotine, 4 parts locations( bottom of barn, top of bar, top tunnels, and chalk room)
2-charge orbs( dont destroy them)
3- get lantern and charge by kill the chicks in the house
4- pace lantern and hit signs in order given
5- chase wisp until it stops at guillotine
6- kill zombies the wisp lights up until it stop( should be about 5)
7- place time bomb on guillotine and wait for round to end, make sure there are 4 players, all the players are touching the guillotine, and that they either completed maxis side of easter egg last or have not done easter egg before

players cannot complete same side of easter egg back to back