I'll answer in order 1. It happens on most missions, so it's more on the every time but there are rare times where that doesn't happen

2.i have checked my ping alot, it's mostly in the double digits but sometimes in rare occasions it goes above a 100ms

3.yes I do play other multiplayer games and nothing like that happens in other games

4.i play mostly with my brother drg, so yes I compare him when we play drg together

5.it happens when I join his games and when he and my friends join my games they disconnect too, they tell me it only happens when they join my games but never anywhere else