Unity3D - Character Customisation

Add customisations to existing character in project/scene using Unity3D game engine Professional version 4 (4.6.9f1)(Windows 10): 1. Spawn bullet from both guns on character 2. Include particle, sound, damage etc 3. An over the shoulder camera when shooting/aiming, so he can see the target + a reticule 4. Existing scene needs to work as before This is for a PC based game (not mobile). Successful candidate needs to be proficient in the latest versions of Unity3D Pro v4 and v5 have C# scripting/programming skills, animation and animation controller skills, Unitys Mecanim system, Camera Controller skills and I want the end product in a demo scene in a [login to view URL] file (PC - Win10) for import into Unity3D.