Mercenaries From Space (TF2 x RWBY)

PS Best to read the rewrite at the bottom unless you want to die of cringe

It's the year of 1967 and the end of the world has come, due to humanity the ozone layer had bursted and had started the extinction of our species.
The mercenaries had survived due to being in the right place at the right time.
What will our favorite mercs do this time? Perhaps escape to outer space?

(PS this is my first book so excuse me for the mistakes in everything, also it's my Au and male OC insert though he will not be involved in the plot and if you don't like the ships, kindly stop reading OK. And I haven't watched RWBY at all)

I do not own anything besides the story itself
TF2 and RWBY belongs to their respective owners.