Mass Effect Multiplayer to the next level

Hello everyone and especially Bioware,

I first like to express my sincerest gratitude for making this awesome trilogy, you succeeded in letting me cry like a baby when the story was finally over. You have given me strength and hope that one day we will be able to chase the stars and explore a beautiful galaxy beyond the horizon. I might not be the one who invents the hyperdrive (or finds the Charon Mass Relay) but I sure as hell want to do my part. thank you again, you guys are best!

Now back to topic: one of the coolest and most innovative things in ME3 was ofcourse the supercool multiplayer co-op mode: teamwork, playing with all the races for the first time, nice weaponry and customisation... it was great! However it still was an extra feature and not that well evolved like the single player. I think it's time to up this mode drastically to make it as important and good as the singlplayer. I'm talking BIG. Here are some ideas:

More maps: Though the free (thanks!) DLC's did a great job, their could have been even more and perhaps some bigger maps (for 8 players for example) to keep the immersion cause if you like it, you will have seen it all after a while.

more modes: there was one mode in ME3 with 4 different difficulties, why not some more? Survival is a typical one (name says it all, survive as many waves), 8-player co-op, maybe a bit of 4v4, objectives... And mission-modes: think about it! 4 players land on a planet and need to complete mission by  breaking into a topsecret facility, sabotaging the reactors, steal some documents and light the facility up? I generally look at the co-op of Insomniac's Resistance 2, the co-op was absolutely great! you had soldier (tank= tough, team-shield, minigun but can't pick-up ammo), spec-ops (dps= squishy but heavy damage, can give ammo) and medic (only that can heal himself and others, great to play). the three classes had to work perfectly or the would get butchered in large objective maps full of enemies. Please do something like this BW! it would fit perfectly!

bosses: why not throw in a thresher maw instead of those praetorians? one that that packs a huge punch and requires the entire team to take down as end-boss you know

more customisation

challenges: a bit like COD, receive some xp,weapons or credits for completing it (we had those challenges in ME3 but I want to get something more than the trophies and your occasional title you know) perhaps working out the titles a bit more (but not too much or it'll really become COD;) )