@Loriel - Ok, I have just read it - it still looks to be a Work In Progress? It also doesn't look to be uploaded to the Yak Vault - which means we cannot see any gamers comments or rating for it.
I'd like to say no, but - I see no reason why you cannot just make the Tunnel and Vents token and one or two of the reloads (as you only need minimum 3 models). As you said, the Tunnels/Vents can be used for other scenarios (and look cool on the battlefield) and the reloads could easily double as normal Loot tokens for other scenarios.
If it was me, I'd make 3 of each (3 Tunnels, 3 Vents and 3 reloads) that way you are covered from every angle.
As for the Hvy Weapon Platform - I'm not sure 40mmx40mm would be enough? By all means make one for your games, but we won't be judging the Hvy Weapon Platform this time.
Ok, Semi-Approved - see above.
@spafe - Cool! I'd like to see more Mordheim here this competition. Yes - you could even think about making the Tomes all look different, perhaps some arcane scrolls, a pile of books, some books open or maybe even a bookshelf! (same thing in game, just different looks on the table) - Go for it, APPROVED!