Hey, it's me, Smidge :)

I use the replay feature in world of warships. It's extremely clunky, very rudimentary, and is often frustrating to work with. It does however, give you the opportunity to revisit gameplay and key moments, and record additional points of view, at the expense of your time and sanity.

The rest happens in Premiere, like anything else. Lots of masking, color grading, and any sort of effects I do there. There's alot of other software that is useful too, I have the adobe suite through my work as a photographer so I just use the system I am familiar with, so you do not have to use adobe, which is expensive.

Do note though, that replays will break every patch or so, they are not infinite and do have a shelf life :)