Self explanatory. There is no reason for Treasure Vaults being the ONLY level in the Arcade without an Arsenal Station. Blessing players with Treasure Vaults, then punishing them by not being able heat their gear is very annoying. In most cases where this happens to me, I would have rather done a graveyard, or even compound, just to heat my gear. Just adding one Arsenal Station to all Treasure Vaults would not take very much work at all.
Why this is even a problem boggles me.
Yes, that may be true, but it still doesn't justify why a player can't level up their gear at the very least from the previous level. Even if a Treasure Vault gives little to no heat, it still helps. But wait, it's wasted because you can't level up your weapon! So what is the point of Treasure Vaults giving little heat in the first place?! Compounds were not designed in mind of rewarding players with a decent amount of crowns or heat, yet they have arsenal stations.
It is a general characteristic of the Arcade to allow players to switch gear to suit the changing level. Chromalisks may be weak, but for a new player with a limited arsenal, allowing them change gear would help them clear the level more easily.
Sorry for getting so riled up over something so simple, but I see no reason for this to exist, and I'm confused as to why this was a design choice at all.
I think they didnt add that, so players dont have to wait for somone forging or changing their gear in this special level.
Treasure vaults are supposed to give you rarities and a few crowns but not heat graveyards give you much heat and crowns but little to no rarities. It is intentional and doesn't need to be changed. That's the point of it, you're not supposed to heat your gear at a treasure vault.