Early in the game I had an RNG Voidfang Vestments. So ended up doing various charity cheesing. Others got the Vex Mythoclast, myself limited to Timebreakers. Getting that bike completely ruined green sparrows for me. They felt like go-carts. During the last week the first exploit was closed I Xûr bought an Armantarium and with a few hours left pushed Atheon off solely for the achievement value. Only pushed Aethon off the front area once, again just for the achievement. That required teamwork and was time consuming.