When Meat pulls the trigger and attempt so shoot 02, his gun clicks, it was empty. O2 says "seven shots". The problem is when you discharge a semi-auto on the last round, it does not re-cock, but remains "open", it would be obvious to even those who know nothing about guns that it was out of rounds.
When O2 first gets his car stolen, he fairly quickly gets up and runs at top speed for many blocks and when he finally gives up, Coco is right there. How did she get so far away from where she talked to him in his car in the time it took him to run there?