I'm sorry for the shit phone picture, but I can't find it online, this is a picture of the operation plan from the interview the police chief is giving right now.
This was a very well planned operation with a hammer and anvil style tactical plan, reminds me of the plan for the Operation Anaconda, but actually well executed or the best Fireforce tactics from Rhodesia.

The "regular" police forces were used in an incursion coming from the bottom of the favela, this made the criminals scurry away towards the Atlantic jungle patches that surround the favela, this is the common song and dance that always happens in this kind of operation, a couple guys stay behind to hold up the cops and barely anyone is arrested and just a few amount of drugs/weapons are found, but this time BOPE was waiting for them inside the jungle, I can only speculate about how they got there undetected, maybe the infiltration was made days ago, BOPE is trained to survive in the jungle for that reeason.

This is a tactical masterpiece, I'm a proud hue today.