It all comes down to him. He had the contact and used the body of the APC as cover to get away, so he had to have seen a company logo or something. Sec teams don't cruise around in unmarked APC's. Its what he remembers, even the smallest bit, that could give Blossom a headstart in finding out who has Vegas.
As a player I know we all need to be on the same page and working together if we make it too the "Rescue Vegas" Cyberpunk DLC. So here's a little of what's in Casino's head.
1st: He is really concerned for Vegas his partner and in reality his best friend. It's causing him to act on his emotions and not on his experance as a runner.
2nd: Starlight adding Charlie as thier "Leader" as he see's it, is her having no faith in this group, and that just pisses him off after he helped save her ass outside the dance club.
3rd: Up until Ghlahn talked about that Casino should get paid to rescue Vegas he had huge respect for the Cyborg and his ability to kill so quickly and easily. He trusted the cyborg as far as he trusted anyone of the group except maybe Echo. But saying Casino should first find someone to pay him for the rescue, that the only way he'd help save Vegas was for pay as he did not take charity, thus turning the mission to recover Vegas trivial has caused Casino to want to ram a .44 up the cyborg's ass and empty its full clip.. Then on top of all that finally admitting he was the one that got the group, all but Charlie, into this mess and not saying a word about it till now, has turned Casino and it looks like Echo against him and labeled him enemy.
4th: And lastly his feelings for Echo. Casino is 34 going on 35. Echo I believe, not totally sure Brom, is 18 and both are die hard killers in thier own respect. Yet the age divide is causing a little confusion and the fact they have not known each other even two weeks is making him wonder what the hell is it about the young lady thats causing him such attraction
This group as it stands Brom told me is very well balanced with muscle, tech, medical, and information gathering. If we can somehow get past this phase we are in without a total 100% meltdown and a few of us dead, we could be a good team for future runs. The question is how? As it stands right now we have no hope of becoming such a team.