so I just downloaded cod waw (pirated version) and i patched it all the way to 1.7 afterwards i downloaded codwaw.exe(1.7) from some page.Now the problem is whenever i try to load a custom map after the game shuts down it crashes.I tried to run it as an admin it still doesn't work(im trying to run the Alcatraz map which i found around here).I also need help on how to install custom weapon models like ray gun mark 2 because i still havent figured that out yet.And lastly do I get to play with my friends who want to play this game as well only if they install hamachi?

Thanks in advance.