M249 is a light machine gun that use 5.56mm ammo type and can only be obtained from air drop crates. This rifle dose a lot of damage and has an insanely low recoil rate. Spraying in m249 proning has a very good chance to destroy any moving target.
Dp 28 is a type of light machine gun that use 7.62mm ammo type. This rifle can be found in world spawn and it surprisingly good if you use it correctly. This rifle has a little recoil when shooting so prone and shoot should help to reduce more recoil also it dose lots of damage and has more bullet.