Movies vs comics.
He has to attack the following strongholds.
1: Baxter Building (all FF members are there. 1 minute prep time on their side).
2: Xavier's school. Surprise attack. He gets basic knowledge of them. (pretty sure Kid Gladiator cleans up here so do one with him in - one with him out).
3: Avengers Tower. (only Iron Man, Carol Danvers, She Hulk & Pym are there.)