I have moments of tinnitus and it can definitely be annoying. I can’t imagine having to deal with it all the time. Do ear plugs help for sleeping or do you still hear it?
Would only be possible on a map as long as Scrapyard or Logs, as you can't start on Round 6 on Resort or anything with less track length. Though due to the layout of Scrapyard being poor for hiding other towers like Geraldo or Overclock from stealing pops, that only leaves Logs.
I also have a tinnitus that kept me from falling asleep quite often. For the most part, "ignoring" it entirely helped. I don't try to focus on external quiet noises before falling asleep, as this makes my tinnitus more apparent. Trying to keep my thoughts away from noises was helping me overcomming my (chronical) tinnitus for the most part. Edit: I should've continued watching first. If it affects your ability to stay asleep, I have no clue what could help. Apologies.
For the tinnitus, see if you're able to get something called Meclizine. I was recently prescribed it and might be able to help you in the meanwhile. I have to wait about 2 months to see a neurologist about mine causing an endless migraine but that med has helped take a tiny bit of the edge off of the ringing sound, that is back down to shellshock pitch (and yes, back down). Almost as painful as would be trying to do this challenge myself when I am also not a fan of snipers, unless it was to cheese deflation mode before I found a 025 dart monkey is able to be done with enough monkey knowledge points.
If you're wondering what happened on Round 76, the T4/M2 Shrapnel deals 6 Damage by default. T3+'s default attack straight up deletes any pre-R81 bloon below MOABs, BTW, so that's never an issue with Regrows. At any rate, with the Alchemist damage improvement (+1 Damage, in addition to +1 Ceramic Damage from the T2 upgrade), that's 8 Damage to each Ceramic, hence them going from still being Ceramics to becoming Blues. Gosh is that convenient.
I did a similar thing a while ago but with a significantly easier tower to do it with: the ninja. I basically got ~18 shinobis, and gm ninja and a master bomber. It was pretty easy tbh. It was also on Cubism btw
it has the most pierce so in the majority of the rounds it just did the most damage there is, i think spamming bounding bullets rather than maims would have been better overall, not an issue in scrapyard but on a different map it would have been
he was not short from falling off tho, he had a big headstart, Criple Moab even though he had the worse crosspath, was bought late, was going to pass him given a few rounds, and i do feel that elite defender could also have surpassed him given that he benefits a lot more from the criple moab's damage amplification on bloons it hits