While I do know that most people give shit for the existence of Super Mutants in the Capitol Wasteland. I'm more inclined to be infuriated by the existence of Super Mutants in the Commonwealth (to which IMO was really a cheap copout more than anything and makes zero sense). I'm not so much bothered by there being an entire Vault dedicated to FEV research. In fact, I think if it were did right. It would've opened up so much more for the idea of how super mutants were operating with an airborne variant of the FEV that was actually more unstable and sporadic for mutation that for what was initially presented by the original brand at Mariposa Military Base. If anything, this airborne/unstable variant could've been used to say and play to the idea that Capitol Wasteland mutants are far more dangerous and unstable than their west coast cousins. It could actually make a bit more sense that Mariposa military base wasn't the only research center dedicated to FEV. Knowing Vault-Tec. It could actually make sense they had contacts in the military to develop Bioweapons in a Vault. Of course Bethesda shitted the bed by not developing that idea more and adding to the idea that the east coast mutants have/had central leadership until Fallout 4. Which is also a copout and a sorry excuse I might add. Within the year they spent developing F3. They could've at least developed the concept and ideals of Vault 87 super mutants as a faction far better.