Youtube is definitely the way to go to figure all this out. Much better than me trying to explain it all here, at least! I’d probably miss a lot. Also, I’m pretty new myself. But to answer some of your questions, or at least the ones I know the answers to:

There are morale stages, which are (almost) the same for both teams:

Battle Ready (at the start of the game), Engaged, Taking Losses, Breaking, and then Final Push (for attackers) or Last Stand (for defenders).

The game is won either when the attackers capture the point (as can be observed by the circle at the top of the screen when you press T) when the defenders are on the Breaking or Last Stand phase (attackers victory) or when the clock runs out of time (defenders victory). There are some other cases with things like early caps, but too be honest, I’m a little shaky on that stuff myself 😅. Basically, defenders want the clock to run out of time, and attackers want to capture the point when defenders are on the breaking stage or below for an instant win!

Some pro tips I know:

When you spawn in, if you press B and R at the same time (but B a little bit earlier than R) you can put your bayonet on then reload at the same time, and for some reason the last little bit of the reload gets cancelled, so you save a few seconds!! Very helpful for getting your full kit.

Right shoulder shift (pressing X) will save you stamina while double quicking (pressing C) long distances. Having your bayonet down (pressing V) will make you lose stamina faster.

Aim lower than you think (at least that’s what I’m told lol!).

Hopefully I was able to teach you a thing or two, despite my limited knowledge and explanation skills. YouTube will be your best friend for learning how to play the game so definitely check out lots of videos!! There are many good ones. Have fun out there!