In an effort to make the PsiOps Battleground: Cosmodrome mission on Grandmaster difficulty a bit easier, one Destiny 2 player shares a simple trick involving the Polaris Lance and a Nightstalker Hunter. For players looking for a challenge, Grandmaster Nightfalls offer the highest difficulty within the Vanguard Playlist. Typically arriving a few weeks into a season, Grandmaster level difficulty offers some of the best rewards for those who are able to overcome the various challenges, like a capped light level, an abundance of champions, stronger enemies, as well as limited revives.