This is my first post, not sure if it's been posted before but I tried searching and didn't find anything..
While doing the Alliance quest "The Chain Gun And You", you can call out multiple soldiers by spamming the "Call Out Soldier"-button, and you can finish the quest a lot faster than if you call out just one.
I managed to call out 3 soldiers at a time, not sure if you can call out more than that.
I had no high latency, so I think it serves no purpose in this.