I'm doing Service Stars. These are specific to kits, weapons and I guess vehicles. Weapons get a Service Star every 100 kills. Kits get the first for all their unlocks and then every 150k+ XP or so. I guess vehicle Service Stars will be similar (haven't gotten one yet).
So I'll do a round of Service Star 1 for everything before I go for Service Star 2 with anything. This will keep my playstyle and experience varied and balanced. The perfect OCD to keep me from becoming a one-sided player.
You guys got Service Star related plans and goals?