All the other lore challenges seem to revolve around the number 5 at least.
ISIC: Play with Kleese 5 times
Ghalt: Play with other faction faces 5 times
Shayne: Play with Reyna 5 times
You could complain about being lucky enough to find or not ever find someone in a group, but its actually really easy to complete the “play with” challenges and they only take 5 games.
In contrast we have challenges like these:
WTF: Kill Oscar Mike 25 times.
Gals: Kill Ambra 25 times.
These require the LUCK that someone will be playing this on the enemy team. Your friends cannot really help you get them because securing these kills without them getting away has a crap ton of extra variables involved. A lot more variables than simply having them on the enemy team.
I offer 2 solutions:
A: Replace the ‘kill X 25 times’ challenges with ‘kill X [5 or 10] times’.
or my personal favorite:
B: Win 5 matches against X.
I think this would be a far better way to handle the challenges. It is still earned through effort, and it isn’t very complicated. Winning 5 games allows it to be potentially as simple as the “Play with X 5 times” challenges.
The “play with” challenges should be the standard for achievements requiring other players. If it can’t be done in comparative ease then it is probably too much.