This is from my walkthrough (still a work in progress):
-Pistol, Submachine gun, Assault Rifle, ASP Rifle, Combat Shotgun, Grenades all on
Interval 1 - Investigation, Arrival.
-Grenade Launcher on Interval 1 - Investigation, Underneath.
-Ve5 Advanced Rifle and Laser Carbine on
Interval 2 - Revelation, Rescue & Recon.
-Lightning Arc on Interval 2 - Revelation, Disturbance.
-Penetrator, Remote Grenades on Interval 3 - Apprehension, Pacification.
-Multi-3 Rocket, Proxy Grenade and Deploy Turrets on
Interval 3 - Apprehension, Bio-Research.
-Minigun on Interval 3 - Apprehension, The Plaza Chase.
-Particle Beam on Interval 5 - Infiltration, Relic.
-Repeating Cannon is the last one you'll find and its on
Interval 5 - Infiltration, Basecamp.