1) I needed that for my mission too, but I never found it.
2) You can't move while shooting but it's the best I got: "/Global/Gun/Gun/Actions/Controller/UpperBody/FireActions/SpudG/Release","Act/Weapons/Gun.act"
3) I don't, sorry.
4) Here's some movement nodes, make style whatever NPC style you want or just replace it in the nodes entirely:
local style = "B_Striker_A"
Idle: "/Global/"..style.."/Default_KEY","Act/Anim/"..style..".act"
Walk: "/Global/"..style.."/Default_KEY/ExecuteNodes/Free/WalkBasic","Act/Anim/"..style..".act"
Run: "/Global/"..style.."/Default_KEY/ExecuteNodes/Free/RunBasic","Act/Anim/"..style..".act"
Sprint: "/Global/"..style.."/Default_KEY/ExecuteNodes/Free/SprintBasic","Act/Anim/"..style..".act"