I didn't beat the campaign before multiplayer's launch (what I did play was fun though) but the Multiplayer is really good, a major improvement over Vanguard. It hits that sweet spot between slower, more tactical FPS like CS and faster movement based ones like Apex, which is a niche that the older games filled and this fills very nicely, with good gunplay and map design to boot (and the map design will be even better once they add in all the original maps like they're supposedly doing)

Obligatory fuck Activision though