i got a map on a different site (i dont remember which one) and it has a glitch where on the dog rounds the dogs dont spawn and my game wont continue and i want to delete this map and reinstall it and see if that works but idk how to delete maps   

Provided the map actually works like intended, then to reinstall it go to your appdata folder in users/appdata/local/activision/codwaw and delete the mod folder name then just install it regularly again

i got a map on a different site (i dont remember which one) and it has a glitch where on the dog rounds the dogs dont spawn and my game wont continue and i want to delete this map and reinstall it and see if that works but idk how to delete maps 

That's actually not too uncommon to happen. It may be like thezombiekilla mentioned, "works like intended". Sometimes the dogs will just walk through things and off the map, I'm pretty sure for traverse reasons, if they spawn at all. If they are spawning, try going to the start room on the dog round and see. If they aren't spawning then the map is probably broken and doesn't have spanwners for the dogs, maybe, and reinstalling wont help then. What is the map called?