I recently got Battlefield 4, and started playing through the campaign. There's a feature that lets you tell your squad when to "engage" the enemy. The tutorial at the beginning describes this in a way that implies that this will result in my allies helping me kill the enemies.
I see my allies shooting, but there doesn't appear to be any effect. This also seems to be the case when not "engaging". I don't know how many times I've shot someone a couple times, saw that my allies were right behind me, and moved up, expecting them to finish him. I turn around, and there are three guys shooting him, and nothing is happening. Not only does he not die, he ignores them and turns and continues to shoot at me.
Do my allies actually do anything?