Do's/Don'ts Abyss camo grind

With this new season adding new guns I just decided to start my abyss camo grind. I already have a couple of guns gold and know to run plunder to help speed up the process. If you have any other tips/tricks that will help me out or guns to avoid please let me know! Thanks!

Added context: Majority of/ if not all of my guns are maxed out already also since I did the zombies mastery camo, I mainly will run it solo