The MEA MP Resource Library (updated April 1)

They do have Marksman's focus as part of the Soldier passive. A bit different though, a ranged rage effect. I quite like it, hope we get something like that in MPer.

That looks like some pretty thick Soldier armor imo, not something a swift and sneaky Infiltrator would be prowling around in.

Also wondering if the new Salarian Operator is an Engineer or a Sentinel.  Sentinel was defined in some SP video as being a tactical specialist, and Invasion and Shield Boost seem like tactical Powers.  Anyway I'm hoping he's a Sentinel because that means he gets Tech Armor!  (Maybe.  It seems to be a passive bonus simply for being a Sentinel now, at least in the SP.  No reason to believe that's any different in the MP)

The way I've always looked at sentinels is that they're the middle ground without strong emphasis(depends on the kit) on combat like vanguard or infiltrator, they normally used both biotic and tech abilities. Right now we know of three: Asari Sentinel, Human Sentinel, and Asari Huntress.

ASentinel has backlash, throw, and energy drain/ HSentinel has throw, barricade, and energy drain/ Asari Huntress has throw, stealth grid, and lance

I think the Salarian Operator is an Engineer, however the N7 Paladin was an all tech ability sentinel(granted he fit as one since the Demolisher was an engineer) so there's a chance. Something that's been mostly consistent with the different classes so far(with some exceptions) is the ability classification.

Soldier - combat     Sentinel - tech/biotic
Engineer - tech       Infiltrator - tech/combat
Adept - biotic         Vanguard - biotic/combat

Almost every MP character we've seen follows this with the exception of the Asari Duelist who has charge(a vanguard specific ability); the Duelist is classified as(only) a combat class. None of the known sentinels have an active tech armor ability; they could get a passive one like in SP as you suggest. I think the equivalents of the training and fitness passives are going to be different this time around and actually be more meaningful and even unique for some characters; at the very least I think the passives will be more relative to the class that character is most akin to.

As for the armored Salarian I'm just very use to them having tech abilities, and I can't take my eyes off that sniper rifle.

Reddit thread

I skimmed this and found that the Asari Sentinel has passive tech armor(maybe they all do). The poster played the MP at PAX; I shortened the original comment.

catheraaine
Friday Demo: Asari Sentinel (F) with Energy Drain, Throw, and some kind of new giant biotic shield power that allowed me to pulse it at enemies. She also had passive tech armor.

JUST LET ME PLAY WITH SALARIANS :sob:

I can't wait to see the Salarian Master Race take over Andromeda.

I agree, too a point.  They really must give the krogan more dodge abilities so he is not a sync kill waiting to happen like in Me3mp

Jon Garlit‏ @geezyheat 
Can you respec for free in multiplayer?

Jake Wicks‏ @wicksj31 
how it worked in ME3 is no respec but you could prestige a character in about 2-3 hours of Plat missions but unkown

Jake Wicks‏ @wicksj31 
if there'll be a respec option in ME:A... Assume you'll just have to prestige to respec.

Fernando Melo‏ DiscoBabaloo
no prestige needed this time - you can for fun, but no bonus. once kits maxed you con't to get bonus stats xp.

I see what they're doing there!  Get a Deluxe or Super Deluxe and you can get periodic free spontaneous stuff!

...And then this is the only time free spontaneous stuff ever happens.

It's about time you got this up. Good looking out DR

I'll buy into it; even if it only happens once. The dollar value of the two packs will probably come close to making up the price difference in the deluxe edition. Though admittedly, my primary motivation is desperately needing a casual outfit to make me seem more relatable to my minions. I guess for MP-only folks the special editions won't be worth it.

Understandable. I personally don't buy MP packs though, at least not with real cash so it's kind of a "that's nice" sort of thing for me. When it comes to casual outfits all the ones I've seen so far look good so I guess that downplayed this outfit for me. Still more extra goodies for people getting these editions is great, makes it look like you're actually getting something for that extra money you're putting down so no complaints here. 
I do have to wonder what they mean by "romance ambitions" though. Will it be some kinky outfit or something else?

I'll be long done in May with singleplayer, so I'll take the crate.