Steve and his team have minor roles. Early on, they rescue Scarlet Witch and Vision from the Children of Thanos and send them to Wakanda so Black Panther and his sister Shuri can extract the Mind Stone from the Vision and guard it against Thanos. When Thanos' forces invade Wakanda in the end, they return to help. Steve is the one that manages to kill Thanos' main enforcer Corvus Glaive after he kills Vision and defeats everyone else that tries to stop him.
Black Panther unites the Wakandan tribe leaders - including M'Baku - to defend Wakanda, and brings Winter Soldier out of cryosleep to help fight Thanos' forces, providing him with a new arm. Hawkeye also joins the battle in the end.
Bruce Banner makes it back to Earth in a escape pod, but can't turn into the Hulk anymore. He pilots the Hulkbuster armor during the battle of Wakanda and fights Thanos' strongest enforcer, Cull Obsidian, who tears the Hulkbuster apart. He eventually turns into the Hulk again, bursts out of the Hulkbuster and defeats Cull Obsidian
there have been numerous railer leaks and a full scene leak lately, along with the lego stuff. So this could be legit or it could simply be someone putting together the pieces from Thor, comicon trailer, leaked stuff, and lego stuff and making nice fan fiction.
sad it seems like we won't get BP beating BD afterall but what can you do.
The only real pause that this is completely fake is that it says Gamora gets murked by Thanos at the end to give him access to the Soul Stone... Gunn says she isa huge part of GoG3... so its made up or Gunn is misdirecting a bit
