If 16 people fly out on a mission, then the specialization of one soldier on a grenade launcher will be useful. The grenade launcher is a support weapon from the second line of attack. However, if 8 people fly out on a mission, then the grenade launcher becomes irrelevant. 8 people is too small even to create the first line to control the front for the entire width of the map. With a team of 8 people, the priority is the weapon of the first line of attack.