Without doubt, one of reasons you’re getting owned is because you don’t know the maps. Certain areas on maps are pretty much deathzones, especially those with multiple entrances. Just learning the maps will make you live longer. It may be a good idea to check them offline, there are only 6 core maps, althrough many servers use more.
If you like devastating guns, learning maps will enable you to set up mobile mg42s properly.
Usually there’s no reason not to move (or to crouch) when fighting someone.
Play dirty. You aren’t obligated required to duel with anyone. Backstabbing, ambushes, everything that’s not teamkilling or hacking the game is ok. If someone complains about abusing panzer, well, tough luck. It’s enabled on the server.
Some static MG42’s are very useful, others are badly placed. Short list of good static mg42’s:
Both MG42’s facing the bank on Gold Rush, one is very nice for axis, another for allies.
Two front MG42’s on Battery - one inside main bunker.
Fuel Dump Mg42 in fuel dump itself.
You can do nice damage with these. Others are either useless or situational. Basically others make you too exposed, or are too easy to bypass.
I think it’s best to move in small groups, one for each entrance. Big groups have problems with bottlenecks, and are vulnerable to explosives.