I was surfing through Gamebanana and I noticed a Model for Sniper that caught my eye...
http://tf2.gamebanana.com/skins/132920
Think we could possible ask the creator to use the model and even replace the model we currently have for Merasmus, instead of having a glitchy, huge model for him?
Just something I thought of to help improve the experience of the players.
If it's put up on Gamebanana and is not a private link, I think that means that players are allowed to use it, even on their servers. I'm sure he'd appreciate it either way, since we're using his models on our server. For your second question, Voidy can probably move around some files and edit them so they fit with the Merasmus FF2 boss.