For the possible questions to the last post:
All SR users would then get the choice between PB and MB.
All SR users would have a taunt component on Evasion. You get into range for that to work, you taunt. Full stop. The value of the taunt would be adjusted by the AT Mod.
SR would have the same power order for all ATs.
Edit: And, yes, for the blast sets, either all would get the snipe or none would.
This would make it FAR easier to balance all the archetypes on both the inter and intra-AT fronts.