I'm out of grenades and I want to re-up them... I'm on the dead man walking mission. Also, how can I use C4? I know how to get it out and throw it but not how to make it explode?

Lastly, are there any listing that show where the weapons are? I want a gauss but can't seem to find it.

Thanks in advance.

You can't resupply grenades, and you use RT to throw a C4 and LT to detonate.

Grenades have their own resupply boxes.

Left Trigger explodes C4

Oh ok, thanks on the C4 details, is there a grenade supply box in the dead man walking mission?

I wouldnt be able to cite them off the top of my head I'm afraid. Best thing to do is use (D-pad UP) Visor mode, press X on any ammo boxes you spot and then they appear on the standard screen and you can track them down. They are rarely on their own - try the places where 2 ammo boxes are grouped together for best results.

Awesome, thanks for the tip

The guass attachment can be found in the campaign mission Corporate Collapse at the start of the mission were there are two aliens fighting a couple cell members. There is a broken down vehicle with an ammo box in the back of the vehicle. The Guass attachment is on a demolition scar on the ground by this vehicle.