A thing or 2 ive noticed from BGing is that (not all) but alot of 1vXers keep being horrifically bad at death match bgs. i keep seeing these insightful individuals throw themselves into a 1v4 against an organized Pre-made group only to die EVERY TIME. i can understand when a team is weak or has low hp and you have a window to 1vX successfully but COME ON. These Clever combatants are just getting wreckted over and over and over again. This is especially bad (yet very funny) when you are soloing queing and you dont have any really way to stop your teammates from going into full fodder mode. So if your a 1vXer and you solo que here are some things you can do to improve your kills/death ratio for the paragon acheivement (its not hard to get).
dont charge head to head into a full team alone unless a)they are lowbies or bads b)you have the sigil of power c) they are fighting another team and they all have low HP.
Final pro tip: use your common sense in combat! every death you get adds to the other teams score so play wisely, watch your resources and use executes(kill stealing is KEY)!