Just a quick preflop spot: What's your 4betting range here? Didn't have any reads on him but looked him up in the search and he was playing 4 tables, so likely reggy. On the one hand I thought AQ is one of the first hands I don't think are good enough to call, which usually makes it a decent candidate to 4bet bluff. However if the CO is bluffing here, then he probably has AJ, Axs, maybe KQ here quite a bunch and by 4betting this hand, I exactly push out all the hands I crush whilst likely keeping in all the (severely) better ones.
So what to do with AQ here and if I don't 4bet this, which makes a better 4betting candidate? Because still, AQ has a lot of decent blockers to his nut hands, too...