make firesuits not be worthless

[Lantern]

I'm sure some of you have been in this situation: The engine erupts in flames, with pipes bursting all over the damn place. You heroically struggle into your firesuit, get your oxygen tank going, and wade into the blaze to put it out. Except the heat just goes right through your suit and you get horribly fucked up in seconds.

Make firesuit wearers immune to fire and heat like they used to be. You're slowed to a crawl while wearing one and can't use them as impromptu space suits like in ancient times, might as well make them useful for their intended purpose.

the usual engine temperature if a proper hell burn is done reaches into the millions of degrees Celsius. The ambient temperature alone inside the hot loop room exceeds 50,000C at the very end of the room to the south. A Fire suit really shouldn't be able to let you wade through something that hot.