Challenges are boostable

[Darling Baphomet]

If you squad up, you can queue for deathmatch and play in the same match together. Shouldn't be necessary with most challenges being pretty doable, but you might be able to grind them more efficiently if you find some other people to do hard challenges with (e.g. kills with rare weapons like the Hammerhead.)

 

Also worth noting that playing in a party with VC makes Last Squad Standing much easier, as most teams seem to be comprised of randoms with very little (if any) communication.

Edited December 30, 2020 by Darling Baphomet