So Sam does his own maintenance on his equipment that Tony Stark made, when Sam is supposed to just have been a military man with 0 mechanical engineering training? He had to contact Stark Industries to get Red wing replaced and no one at Stark Industries was like y'all need one of hundreds of satellites or top of the line tech to find these people or nah y'all good. Flag Smashers are a global problem seems like that would've activated some kind of pop off beacon for all these multination mega corporations that the Avengers have connections to.