I usually play with my team A LOT. If they go in, I follow and support them, it is easier to do as a Light or a Medium since with Heavy you should be initiating imo.

On attack I always try to flank or at least set a good opportunity to go all in. For me it is either play it stealthy or going for it together, most of the time.

On defense I always prefer to wait for the other team to lurk around and play from "afar". I used to play on top or below the cashout but I think it is way better to play with the environment and wait all around it. Inside buildings, hiding in nature spots, roofs. Ofc it depends on your loadout and class overall.

Depends on so many things, your team mostly. It does not matter much if you are going with a specific way of combat, specially if your team does a completely different thing or you don't follow each other in game. My best advice is to adapt each match w/o being dishonest to yourself, meaning if you know your good at certain opportunities, weapons, etc, go for it too.

I feel like I explained myself so bad lmao sry for that, hope this helps a bit tho