These guys are so incredibly annoying as fuck. Where do people know which angle to pre aim the angle camper? Everytime i try to swing an angle camper i end up pre aiming the wrong angle. Any tips?

I was having an issue joining my friends lobby after the latest patch, was wondering if anyone else had the same. It kept saying invite sent, but neither of us would get a notification. Anyone else run into this? Edit: Glad to know I’m not...