Just rewatched Winter Soldier and noticed how they foreshadowed Rumlow eventually turning into Crossbones with the his overlapping gun straps creating an X similar to the one he wears in Civil War. :
Fan Casting Frank Grillo as Brock Rumlow in Captain America 4 on myCast
What To Expect From Crossbones In Captain America: Civil War, According To Frank Grillo - CINEMABLEND
Expect Frank Grillo To Suit Up As Crossbones in Captain America 3
Brock Rumlow | Captain america winter soldier, Captain america, Frank grillo
Winter Is Cuming — Divided: Part 6
Brock Rumlow (@BrockCrossbones) | Twitter
Frank Grillo's Crossbones Unmasked In New 'Captain America: Civil War' Photos
Civil War: Who is Crossbones? - GameSpot
Marvel's Most Underrated Villain in the Cinematic Universe | Creamer's Cinema Craze
Rumlow Jacket Captain America Winter Soldier | Captain america winter soldier, Captain america winter, Winter soldier
Captain America: The Winter Soldier: Frank Grillo "Brock Rumlow" Official On Set Interview - YouTube
Brock Rumlow | Marvel Movies | Fandom
Brock Rumlow (@BrockyRummy) | Twitter
Crossbones Helmet Cosplay Captain America Civil War Helmet Brock Rumlow Mask PVC | eBay
In Avengers: Endgame (2019) Captain America did what Rumlow did in Civil War to disarm himself. : MovieDetails
Nothing Will Get In Crossbones' Way In Captain America: Civil War
Brock Rumlow | Marvel Movies | Fandom
SNEAK PEEK: "Captain America: Civil War" - 'Crossbones' Unmasked
The Falcon vs Rumlow/Crossbones - "This is Gonna Hurt" | Captain America: The Winter Soldier (2014) - YouTube
Captain America civil war captain America vs Brock rumlow fight scene - YouTube
Crossbones in Captain America: Civil War. Who is He? | News Ledge
