No. I'm pretty sure the Soldier class can use all the weapons. Other classes are only able to use the weapons that are displayed under it.
To increase weapon damage in Mass Effect 3 you need to level the weapon up or purchase/find damage mods (in the form of barrel extensions). To level a weapon, you can simply purchase upgrades for various prices depending on the weapon and its power. Leveling a weapon improves it in every way, increasing damage, ammo capacity and making it lighter. Barrel extensions are weapon specific and exist for all weapons except shotgun (which have a different damage mod). These can be found on the odd occasion, but are easier to purchase at a store. Like weapons they can be leveled. Weapons and mods can be increased to Level 5 in the first playthrough of the game. If you import a character who has completed Mass Effect 3, you will be able to continue leveling weapons up to Level 10. A Mass Effect 2 imported character does not enable the leveling of weapons to Level 10.
All of the Mass Effect games are 3rd Person.
Not all of them. Maybe one or two of them, but all four games will not fit on a 4 gig hard drive.
Mass effect force because mass is all about force
I personally use Vanguard because you get a decent range of weapons(especially in mass effect 2) along with biotic abilities. Soldier is the easiest and Adept the hardest, this is because for soldier you receive training in all weapons classes but for Adept you can only use the pistol. And you can get good with any class if you play the whole way through. "Sometimes crazy is the best way through." - Urdnot Wrex
As long as the mass on the end is much greater than the mass of the string it's hanging from, the mass has no effect at all on the speed or the period.
To find all those weapons of mass destruction, of course!
No measurable effect at all. The electrons which cause the negative charge have such an unbelievably small mass that billions of them cannot make any observable change to the mass.
Electrons are very light. Protons are approx. 1800 X the mass (rest mass to be presice). Neutrons are about the same mass a protons. So the mass of all the electrons has little effect.
They're All Random...
Mass Effect for the PC and 360.
There is an online Mass Effect Wiki that contains the full list of planets and their contents.