no
once you have power armour traning you can wear enclave armour.
no you can only be invisible with Chinese stealth suit (operation anchronage) & stealth boy
significant use of stealth-boys, stealth-like armor (such as Chinese stealth armor from Operation Anchorage DLC, and a strong melee (such as shiskebab or jack the ripper)
You can't mod the console versions.
The Chinese in 2057 to 2060
The Chinese Pistol is a Shanxi Type 17.
you have to pick it up from a dead hellfire soldier from the broken steel expansion
The game of the year edition has extra missions that are really neat and give you unique opportunities to get crazy weapons and armour, if you get the broken steel addon it will let you go to level 30
You get the armour from the Brother Hood of Steel at the Citadel , but you have to train first in order to get it. Sergeant Lyons will give it to you, but no until later in the game
Yes coz they bomb the Chinese base on the last mission trench warfare
Occasionally Fallout: New Vegas will freeze, but not as frequently as Fallout 3.