NYGM 2.2 missing conning tower HELP!

[mainexpress]

i did my first patrol with Nygm 2.2 mod and when i went to dock at a u-tanker to re-load on torps and fuel.i left the tanker and noticed i had no conning tower,now there is a possibility i might have cross-polinated the files because i have dual installs,of Grey Wolves and NYGM 2.2. My question is- how do you know if you cross-polinated the files? is there a way to find out? and if so do i have to do clean installs of both mod versions?im using SH3cmdr for both mods.i notice when i choose an earlier save point for my career before i dock at the tanker my conning tower is intact and not destroyed. its only after i re-load its missing.