Grenade Kills in Strikes (FWC) - Nightfall has torrent. Go in solo and use grenades as much as you want, plus since you can go solo, nobody else will be around to steal your kills. Public Events (FWC) - EDZ. There's almost always one either about to start or already underway. Power Weapon Kills - Sword is good for this, as you can kill plenty of weaker adds without running out of ammo. Super Kills in EDZ + Generate Orbs (NM) - If you're a Hunter and have Orpheus Rig, use it and run public events (Glimmer extraction is best). If you're not, team up with a Hunter that does and use the orbs they generate to fuel your own Super. Also, using a Rocket Launcher Masterwork helps a lot. Patrols in EDZ (NM) - Patrols that involve you just moving to an adjacent area and standing still in a certain spot tend to go by the quickest. Lost Sectors not on Earth (DO) - Spawn on Titan by the NPC. Turn left, jump off the platform in the direction of an adjacent platform, there's a lost sector under some stairs just ahead. Go in, kill the wizard, grab the chest, then fast travel back to the start and repeat. Melee kills not on Earth (DO) - Just run around on Titan punching everything you see. Try to target weaker enemies, as there's more of them and they die easily. Precision kills (DO) - You could probably go Nightfall and use the fact that you can run it solo to your advantage. Get precision kills on every enemy using whatever weapons you prefer, and nobody else will be able to steal your kills.