Hey i think there is something wrong with the Tombstone perk because a zombie hit me once and it instant killed me and respawned me with nothing but a starting pistol. I've had this same problem happen on another map and i know for a fact that its Tombstone not who's who because i didn't have it

I’ll take a look at it, might be because not all perks are 100% compatible with the TombStone.

Also just replayed the map and i got 33 perks and i bought 35+ perk slots but the Windrunner perk just doesn't let me buy it, and the stronghold perk seems to take way too long to start charging, i would stand still for 1-2 minutes before the perk would activate. Is this how it was in Black ops 4? or is it a bug?

I'd like to state that I didn't not make any of these perks, so finding a fix for these is going to be a stretch as I'm more of a mapper type of guy, I might know just few tricks with scripting but that's all.
I went in to the map another day, I can pick up the the Windrunner perk. Maybe it's a weapon specific, so do you remember what weapon you was holding at the time? Also it could be that the perk doesn't like being on any other perk slots apart from the first four.