TSLMG-18 = Tactical System-Light Machine gun.

Partially based off the Light Machine Gun from Mercenaries and Mercenaries 2 World in Flames. Its capacity is magnificent but all that ammunition and you can't be too far away to be able to hit anything. I just like the gun because it looks cool, however, the fact it can't hit crap at the range the Carbine or the Assualt Rifle can dissapoints greatly. Thus why i carry a sniper rifle and Anti Tank Rocket since i dislike most of the other weapons. Oh and yes... I do use infinite ammo and healt~ Only because games like Mercenaries are most fun when you can cut a bloody path through your enemies.

As for the Light Machine Gun in both the games i assume it used a variant of 7.62mm round so this one shall as well. My TSLMG-18 has a 40 to 50 round drum magazine has a selective fire of single, semi, and full auto, and with that fore grip it adds that extra stability one needs when shootin some enemies.

Enjoy~