This is a really nice good looking map!
I am sad to see that this level is so short.
But heey I enjoyed this map a lot. Thanks!

Have you checked this topic: https://www.ugx-mods.com/forum/sounds/57/updated-tutorial-adding-different-round-sounds/2211

You may also post it here if you like or make a youtube video. 

I have no idea what you mean.
In case you have troubles downloading the map you can also look here: https://callofdutyrepo.com/2022/07/01/subzero/

Yes!

I am looking forward to your full review of the map. (PHD is actually in the map but it's a hidden easter egg, I am curious if you can find it.)