'65 Squad Level Combat in Vietnam. On Kickstarter!
When firing with multiple units, you designate one of them as the lead unit and resolve everything as normal with the difference being that the other units add their unmodified HEF as a modifier to that attack.
So no, only the unit activated with the POWER card gets the bonus.
Yep, that's correct and I am working on an update. I'll let y'all peruse it before it goes live. Email me at markATflyingpiggamesDOTcom if you want an early copy.