The most fitting genre would be Future Bass, not really dubstep. The LFO (hovering) chords and the drums for me are specifically for trap-ish or future bass. Even the "water drop" sample is in there, classic.. Only thing missing is a "squeaky bed" sample. The artist probably even chose them from a future bass sample pack. I remember the genre becoming popular around 2016-17 but it could have been released later than that. Anything earlier than 2016 seems unlikely for me but that might just be me.
Having heard too many NCS songs I can't remember this one. With respect to the producer of the song, this doesn't have the highest production quality (opinion).. It could have gotten a better mix and especially the melody lead synthesizer is louder than the saw chords. While its a nice song for what it is, I feel like we are talking about a song of someone who hasn't been producing for very long. That doesn't mean it's garbage or anything, beginners always lack the ability to properly mix and master their songs and their creations are still good.
My guesses are:
1. This could have been produced by someone unknown who sold it to a music library specifically made for videos, probably would have the "gaming" tag on it as that music is constantly used for YT gaming and sometimes vlogs
2. The video creator of that FPS montage made the song themselves, thought it would be nice to have it in the video.
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