I regularly play network games of Combat Mission via Hamachi. My friends and I have frequently noticed infantry weapons disappearing, seemingly at random, from a small fraction of units between turns. The weapons in question are usually light machine guns, rocket launchers or rifles. The weapon disappears from the unit's inventory, and the model also disappears, leaving the infantryman empty-handed or holding his sidearm. This typically affects individual weapon teams, or one or two members of a squad.
This bug seems to happen during the first turn of the match, and only affects the player who is not hosting the game. I have experienced it in CMCW, CMBS, and CMSF2. I suspect it is a netcode issue.
I realize most of the playerbase uses PBEM, but I hope it will be possible to resolve this bug so we can continue playing network games.