Have two types of field lockers, one for predator players and one for humans.
The pred field lockers are still the same but human field lockers grant bonus veritanium when they are opened in addition to whatever duplicates are found within.
Another is to promote solo queuing as fireteam, guaranteed field locker/double xp/veritanium after every match. Win or lose. This gives the tryhard players a reason to go alone.

