The unique characteristic of the CARV2 is that it fires exclusively in 3 round bursts (no outside mods required), just like in BOCW.

Damage is 85, exactly enough to 3 shot headshot the tan SWATs.
RPM is 900, fairly fast for a rifle.
Accuracy is above average 76 and should be fairly accurate at what you point it at.
Stability starts at an average of 48, but will probably going to be a stat you need to raise, to counter the strangely jumpy recoil.
Concealment is average at 15, with not that many ways to increase concealment. Dodge builds arent going to be to the strong suit of the CARV2.
The magazine size is 45 rounds, well above average and can be modified with further increases.
Total ammo capacity is subpar at 3 total mags/135 total bullets.
Ammo pickup is 2-5 at base, turning to 2.7-6.75 with the Walk in Closet Perk Deck passive. This should be plenty of ammo if you can score one burst kills, with a little bit of a room for error for some misses.