Yes they do.
Yes
yes
Spartans are generally 7 feet without there armor. In full armor they can be as tall as 8 feet.
The higher your rank the more armor you unlock for the elites but you cant customize elites like you can with Spartans
No, It is not. It's actually supposed to take place in between Halo: Combat Evolved and Halo 2You can tell by looking a the Spartans armor its mark V
Helmets Jun:scout kat:air assalt jorge:grenadier carter:mrk v(b) emile:e.v.a Jorge had mark IV armor but all the other Spartans had mark V armor with several different modifications.
No, Halo Spartans are both male and female.
If by forge you mean customizing the armor in multiplayer, then you just go to the menu in multiplayer and choose the one that lets you choose what to wear.
No
YEZ! real halo armor at ebay.com
There's an onlie-type of vanity for halo 3 that allows you to make elites as well as spartans, which i think would be better since you cant change specific armor pieces.
they are genetically enhanced so that they can wear the half-ton suit of armor that can take more damage than a standard soldier