Civil War Band - "The two generals had gotten together and agreed upon a truce of sorts, before the battle resumed the next day. The Union band started playing songs, a common occurrence and a pick-me-up for northern soldiers. The Confederates were close enough to hear and would yell across the empty fields. Imagine that: in the cold and damp winter, mostly shoeless Confederates who would yell “That’s a great one,” across the field and finally “Play some of ours!!” to remind them of home."
The real reason for CA:TCW is that the two sides can't decide on a united fashion statement. Seriously, look at Tony's side: they all have fully covered hands. Ant Man's the only one on Cap's team that doesn't have fingerless gloves, so I think we can all agree he's the double agent. =P