Oh yes, I did, all of them, including Andromeda(wich if would be more polished, it would be not half as bad). ME3 is my favorite, and I am multiplayer headshot/melee pro with 3000 hrs online (I am always top in score, no matter with who I am playin), since its around, and even these days still playing sometimes gold or plat pugs. My most used classes are geths, all kinds. One of my signature is "hiding" rocket launcher, so it appear to invisble, with swap + melee trick, or ladder with characters that cant do that. Some maps dont have ladders, so I even go far as equip batglove, for characters that cant use swap trick.
I also fond of melee'ing cerberus ghosts, as I am also an expert when comes to game mechanics. I know very well every type of enemy, but cerberus is my favorite one, because they are most fun to melee with variety of classes. Especially dragoons and ghosts, wich unless youre exacly know what are you doing, you cant really go into melee with them, but I can. But more than I am blawler, I am more marksman, who goes for headshots, and often I do get gold headshot medal(20 heads), before getting bronze medal for wep kills(25 wep kills). I got killer bulids for every character, I think. And yes, I do also carve to end up 1st in board, so expect spawn nuking, when its time for that.
Frag nades, con shot + cryo ammo, and falcon. Cryo explosion everywhere, and high score guaranteed.
Turian solider with eagle pistol bulid, thanks to that power, wich causes auto-reload as well, in me3, its better than most AR bulids in game, even turian infitrator, with cloak and AR bonus for it, cant match it. Slap proxy mine and its more even ridiculus.
Except it would not work well with PVP in mind. More about that bellow.
Yeah, I know all the classes, and all characters very, very well.
Thing is, while Oddy and me3 have some similarites, like shield gate mechanic, and shield/health system, yet oddy is oversimplified in comparison, and major point is that in oddy, you dont have classes with powers/tech/biotics, wich is kind big diffrence and ME does not PVP(unless enabled). Me3 have over 50 diffrent weapons, and as much more powers, you also got way more damage types, and combos as well. While its fun to play around, lets not forget its still stricte PVE only, as when it would had PVP (wich can be enabled with console btw, in online) its get hiralously broken.
For example, turian inflitrator, with overload, you can stun lock infintely another player with it, with some melee on top of that. Some biotic and most geths (javelin + phasing rounds one shots players by walls) are overpowered to the point, where weapons used dont matter as much, as power pool that specific class and character have. Once tried "PVP" in me3 online, one does truly realize how broken setups can be, and a lot of them a well.
Back to oddy topic, while it would be fun to have that much of depth for classes, loadouts and so on like Mass effect has, again, it would be not too good for PVP, and it would be impossible to properly balance it around, to make all those variety be not so ahead of each other, not to mention, many classes have very op combos of thier own powers, along with some broken weapons.