Unsolved Fastest way to complete all 100 Mission for the Officer Ranks ?

[Wurstwasser]

I have a question.
My progress on the Officer Rank mission is far too slow ...
Is there any kind of glitch or trick to do it faster?
Or is that only faster with a boosting lobby?

 

[Skepta]

Get good or boost are your options, or just chill and enjoy the game, take your time and you'll be playing longer

 

[Vegeta]

or just chill and enjoy the game, take your time and you'll be playing longer

Yeah but the challenges are time-based and expire every season.