well i do want to improve on how to be better at 2v2 since i play 2v2 like 1v1, as u stated how i play
soo how can i help my teammate,
for example, do i cap another Fuel or do i help my teammate to cap his fuel,
n when i see my teammate is losing his Fuel point do i keep pushing my Fuel or immediately go help my teammate n losing the point at my side?..
i need to watch more on the pro's replay,
Quite simply: it depends.
But for a rule of thumb on the lower and mediocre ranks with random mates: draw battle lines, don't split too far apart.
In team games you may face more than one enemy at any given point, so spreading too thin usually ends up in a lot of bad fights. It's also a bit more exhausting, so sticking together a bit is usually a more chill approach.
As a start it's rather recommended to get your "natural" (the fuel / ammo points on your side of the map), then work from there. In a nutshell, if you play a more mobile faction, you should be more agressive on the flanks, with a more defensive one, you try to bottleneck more - to keep stuff contained.