Ive been only playing for a couple days so my knowledge is a bit low on the subject. I figured i would post what i have noticed so far that helps to get allot of points every match. I seem to be averaging 8-10,000 points per match.

List of things i do:

1a. As soon as match starts bring up objective wheel: Select a player to escort, stay with your target till the end of the map if possible (sometimes you get separated). Sometimes while playing soldier an escort selection does not come up when attacking. In some defense matches you wont have an escort to chose either. But more often than not there is.
1b. If you lose your "combat buddy" just select a new one.
2. Use objective wheel as much as possible to select things to do and accomplish them (bonus points for declaring what your going to do)
3. Get as many kills as possible

I have seen on defense that you will get points for defend and for escort. Then you can get points for everything else you do while your escorting. The points rack up quick.

Thats all i know so far.

Feel free to add to this if you want.

Funny thing. I was escorting and threw a molotov at three enemy bots. Then my escort followed up with a nade and got all three kills. Luck sack bot. Should be an achievement for that! lmao