Each of the Space Marine 2 classes offers its own particular playstyle with both strengths and drawbacks that it brings to bear on the battlefield. As ever, though, the best class is whichever you find the most fun. With the variable difficulty of both the campaign and the Operations co-op mode—and whether you decide to play PvP or not—you'll likely find yourself favouring multiple rather than sticking to just one.
If you are looking for a brief summary of what each class does well in PvE, you can refer to the list below. I've also included what I think is objectively the best PvE class—despite the fact I absolutely adore the Heavy—in case you're wondering which feels the smoothest to play. If in doubt, you can always play the Tactical class until you get a feel for whether you prefer melee or ranged.
