This topic can be ignored. Loading the CODMVM mod ended up getting me banned because I forgot to load into LAN only mode. I tried being forthcoming and asking staff in their discord for a possible unban, which I get is a stretch, and I was shut down (understandably).
Just posting this last reply for anyone having the same issue, and hopefully this will be a warning for them to NOT do what I did lmao. (Load CODMVM while online in IW3, didn't seem to be an issue for T5.) shoutout to kuta for linking the LanLauncher
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Never mind my years long history of editing, but that's ok