Custom Magazine while exploring The Bridge, as it'll give you a ton of capacity modules at the start of the chain, allowing you to wrack up free clips quickly. This trick is a lot easier to pull off after finding the P.C.S.I.

Once again, fire all the proximity mines you can, then head back into the workbench and slot another node into capacity.

This will fill your current ammo clip free of charge, meaning you're able to fire more proximity mines. Only do this once and then quit out of the menu. Head into the Pulse Rifle menu and spend a node on capacity. When you're entirely spent, turn around and access the workbench. Fire as many as you can with the ammo currently in your inventory. You can do this by aiming the Pulse Rifle and hitting R1 / RB. Now, the idea here is we want to fire proximity mines onto the floor nearby. By pressing SQUARE / X while in the rifle's node tree, you'll be able to reset all current node progress for 5,000 credits, restoring your rifle to its original form. Take them to the workbench and click on the Pulse Rifle menu. When you're ready, you'll want to grab your Pulse Rifle and as many nodes as possible. The Medical Tram Stop is a brilliant spot to use while attempting this trick, as enemies likely won't spawn nearby, there's a store accessible by the stop and a workbench just through the east exit. You'll also want to find an area where enemies won't spawn so that the game's random encounters won't activate while you're gathering ammo. You'll be able to exploit this glitch after discovering the Pulse Rifle in Chapter 2, although it's best to wait until you find a store and workbench positioned close together to make the best use of it.

Dead space 3 ammo mod