A small mercenary group was usually similar to a small assault team. Most of them were light infantrymen, and their fiercest firepower was usually machine guns and some explosive means.
When it came to medium-sized mercenary groups, they had to pay attention to the coordination of their troops. Otherwise, just the increase in numbers would not increase their combat strength by much.
They would start to consider some heavy weapons, various artillery attacks, and the like. If they had money, they could even get some tanks and helicopters.
When it came to large mercenary groups, it was almost the same as an army.
The quality of a soldier might not be as high as a small mercenary group, but with the overall coordination, it was not something a small military force could handle.
Large mercenary groups generally accepted official employment and fought for certain countries.
This kind of power was a little terrifying. Basically, it was invincible.
