» Fri May 13, 2011 7:10 am
Compendium, dude. I don't have the link, but I'm pretty sure it's at fragworld.
A heavy with a grenade launcher and an assault rifle will move the same speed as a heavy with two pistols. However, when you add attachments to weapons, it decreases your draw speed. In that respect, drawing a bare assault rifle will be quicker than switching out to the same assault rifle with a scope, drum magazine, silencer, flashlight, Hello Kitty keychain, etc. .
Weapons don't affect your movement speed, but attachments effect your "equip" speed, which a stat listed for each weapon.