Possible scam?

I got talking to this Nigerian guy while playing hardpoint, he seemed cool, and then he asked for my number to add me into a group chat, he said it was to help new players play better, and that in future they’d be trying to play against social media influencers. I sent him my number.

He messaged me, then he told me to message someone else and say that I was sent by him, which I did.

The second guy sent me these messages. Are they trying to scam me or steal my account or something?