The M2 Carbine is an updated version of the very popular M1 Carbine. It is capable of fully automatic fire and comes with a 30 round magazine. A stronger stock makes it heavier than the M1, but far better suited for front line conditions.
― Heroes & Generals
The M2 Carbine has a comfortable stock rate of fire of 577 RPM. This paired with its stock damage of 26, the M2 Carbine can perform very quick 4-hit-kill at close range. Long range shots vs a heavyset opponent may require upwards of 5 shots. Recoil is negligible, making long-range accurate bursts a breeze. One fire-rate upgrade (the Field-modified trigger, being the first one) bumps the fire rate up to 695 rpm. This, combined with its decent hip fire ability and faster reload time, makes it an extremely effective CQB weapon.
Adding the later-unlocked lightened spring ups the fire rate to 704 RPM, which also results in notably quicker muzzle climb. It may be undesirable to take the fire rate so high, as it will damage the gun much faster than normal fire, resulting in increased maintenance costs. However, it turns the weapon into a man-melting machine, which, when combined with a 1.9x scope, allows for accurate range fire as well as great CQB capability. Custom ammo is not recommended with higher rate of fire builds as there will be a tendency to overshoot, wasting the expensive ammo. Also, the slight damage boost isn’t enough to justify the extra cost.
If the enemy has many StG44s you should consider going closer to them for the most advantage with this weapon
This weapon only weighs 6 equipment slots with a pouch, letting you bring two kinds of grenades for example.
Jackal ammunition is worthless even in regards trying to kill off heavy set users since your ROF is high enough that another bullet hardly counts, meanwhile it won't help you at longer ranges with added inaccuracy or short ranges with instability.
Mods are expensive; going without them leaves you with a good mid-range weapon.
Keep to firing in short bursts when in ADS, as the flash from the M2 carbine makes it difficult to stay on target.