Hi kind of new here….
Any way I played ME2 (never seen ME1, sad I know) and here is my wish list:
I have read a lot of wish lists posted here (not all, it would take years) and I liked a lot of the ideas you guys posted. As for me I played the game over and over and over again, loved it, but since I played a lot of other games over the past 20 years I do have some things I would like to see improved, added, scratched.
1- More guns please, where did all the guns go! I want at least 30, 40 weapons, and the ability to customize and upgrade them as well, (scopes, grenade launchers, extra ammo clip, faster fire rate, more accuracy….etc you get the idea).
2- More armor options, I want more armor options, example infiltrator armor has cloak device, less armor, more agility for user (faster running, and better handling for snipers), combat armor has less agility more armor…etc. Also armors for tech users that boosts their abilities (I have an idea for tech classes hope u like I will explain in point 3) armor for biotic users too, anyhow you get the general idea, more armor customization, and options. Armor coloring was cool keep that. Also helmets should have an option to "close" and "open" that would be cool.
3- Ok what I like to see in ME3 is a more effective engineer class, what I want to see my friends is an engineer that can deploy robots to fight by his side, yes fully customizable upgradable robots or robot (1), that would take the class to a whole new "level", I'm not talking about the lame 2 second probe thingy, I'm talking a heavy mech. at level 20 kind of robot that you can have with you on missions, maybe as the other team mate for balance reasons. You can "play" with your robot at your own little lab on the Normandy; give it some nice paint, extra plates, weapons….etc that would be the coolest thing EVER, although I feel a little sad to relinquish this idea for "free". I must point out that I love coming up with new innovative ideas more than getting paid for it

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4- Ok I want bigger levels, because the areas in ME2 were a little small, I'm not demanding fallout3 levels on each planet or space station, but bigger levels would give the game more replay value.
5- More character interactions, and yes more "diverse" sexual options, it’s the 22 century, and besides the Asari are already a "gay" race, all females, I actually find it amazing that Asari are even attracted to males of any spices really!! But it's not such a big deal since I like to socialize outside the game universe, but it will help the immersion factor, and more immersion means a better game, dragon age anyone?!
6- SPACE BATTELS, although I think it will be tricky to implement, it would be great to have huge space battles with boarding options ARGGGGG.
7- More space ship options, I like the Normandy well enough but maybe I would like to have a Turian cruiser instead! 3 or 5 ship options would be great although they would take time to make, but it's easy enough for a big company like EA and Bioware.
8- More skills and abilities would be great, and it's not that hard to add to a game like this, a skill tree would be awesome, then you are "forced" to choose between many options, maybe some more passive skills too, example: you choose an infiltrator class, and in the infiltrator skill tree you have an upgrade for the tactical cloak, after you pick the skill you get two more skill options under it, one that make it last longer (Longer than 8 sec, I mean really 8 sec!!!!) and one that makes you shot twice before the cloak fail, and you can't choose both…. It's just an idea and it would add more diversity to the game.
That’s all I can think about now, all in all I think ME2 is a great game and I enjoyed (still enjoying) it greatly, I say bravo to the team that made it and I wish I was with them, helping in creating such epic and beautiful art and stories.
Anyway keep up the good work and I hope you guys like my ideas, if not well that’s even better since you will be forced to make a better ones