Hmm... Spoiler The Black Order attacking the Sanctum makes sense if they're trying to get at the Time Stone, though Stephen shouldn't have the Eye immediately on him . So Corvus is in Wakanda? We know he and Proxima are part of the attack on Vision, who's also here, though I'm not sure how those two correlate . Although we know Hulk/Banner and Falcon are also in Wakanda, so I'm guessing that explains Proxima fighting them (and of course she and Corvus would be together). We know Iron Man personally takes on Thanos, so either the Guardians arrive as backup or everyone converges there for the climax of the movie. I wonder if it'll just be the Guardians who don't go with Thor to get the axe ?