Combat in DmC not fluid? I'd like ya to watch this, DmC has a fantastic combat system, and the styles are all there, they're not just called styles anymore, you have access to about 90% of the stuff from DMC3 and 4. The only thing missing is Twosome time, which I hope they bring back.
Not all of the styles.
Sword Master in DMC3/4 were just extra moves to your melee weapons and when Rebellion's moveset is dispersed to other weapons (Prop and Shredder to Osiris and Round Trip to Aquila) its hard to gauge if Sword Master is still there if the former style button is a launch button (which was sectioned as a command utilizing the basic attack button) and the fact that each weapon in DmC has the same amount of moves a weapon in DMC3/4 may have if you count out SM exclusive moves.
Yeah Trickster is there (minus Wall Running from DMC3 and Flipper/Mustang from DMC4).
Gunslinger is obviously there as the Gun Specials but you only possess one special (E&I's case 2) and even the Shotgun is missing some of its Gunslinger tricks such as Gunstinger, Point Blank, and BackSlide.
You have access to 90% of the stuff from DMC4.
Out of all the Devil May Cry games, DMC3 has the most content combat/movepool wise (DMC4 contains 2/3 of what DMC3 has.....Dante wise and DMC3 has double of what DmC is capable) and other aspects of DMC3's combat is completely absent (body surfing, wild stomp, crazy combos, and DT exclusive moves, something DMC1 and DMC2 also had, while DMC4 had DT charged moves not the same thing).
Also, when you say 90% of the stuff are you referring to that on a basic level cause DMC3/4 as well as DmC possess weapons and moves unique to each other such as Osiris (although it possess moves in past DMC games), Aquila, Arbiter, and Kablooey (a more explosive gun version of Lucifer) as Nevan, Cerberus, Kalina Ann, Pandora, Agni and Rudra, and then there are the gauntlet weapons.
Its tradition for DMC games to have a gauntlet/greave weapon and DmC is no different with Eryx but its lean more towards being a copy of Dante's version of Beowulf (minus its only unique basic combos) only because it shares more similarities to Beowulf than Gilgamesh and Ifrit and the only similarity is Hammer/Showdown which are aerial attacks where Dante knocks an enemy downward while staying in the air but Showdown can be charged up while Hammer cannot (the only move in Beowulf's moveset that can't be charged) while Gilgamesh is a copy of Ifrit because it possess Kick 13.