The largest, and most obvious, downside of the Unification VII is the fact that it has a tiny magazine size, so it may be best not to miss or get too trigger happy.
If, for some reason, your target still stands, then the weapon's High-Caliber Rounds will ensure that it is harder for them to shoot back. With the Unification VII though, the latter two scenarios become slightly less common, partially due to the New Monarchy shotgun's fully automatic nature and partially due to its absurd stats. When you shoot someone with a shotgun in Destiny 2, one of three things can happen: you either eviscerate them, you find that your shotgun doesn't have quite enough range to instantly kill them and you die trying to shoot again, or you outright miss and die. Obtained as a random drop from New Monarchy level up packages Needless to say, the Corrector is more well rounded for PvE, or if you want to use two very similar and very powerful weapons in the Crucible at the same time.
All reputation rewards for completing Vanguard Strikes. All player Guardians belong to the Vanguard initially, as it is th e Faction that you automatically represent when you begin the game. With High-Caliber Rounds, the Corrector can stagger enemies just as effectively in the Crucible, and if you're facing multiple enemies, Rampage gives you a fighting chance as it increases the damage you do upon a kill. Forces of the City (Vanguard) The order of veteran Guardians devoted to the protection of the City, the best of the Titan, Hunter, and Warlock orders. In terms of stats, the Corrector is roughly similar to the Multi-Tool, possessing comparable rates of fire, damage, and so on, but it is the Corrector's perks help it stand out as a viable alternative to the Multi-Tool.
It is no secret that the MIDA Multi-Tool is terrorizing the Crucible in Destiny 2 thanks to its excellent rate of fire, accuracy, and High-Caliber rounds (which makes it harder for people to return fire effectively), but it may soon have some competition from the Future War Cult's newest Scout Rifle, the Pleiades Corrector.