

This is the way. I believe one of the milestones gives you a prepackaged neutron cannon and one upgrade, and other upgrades are easy to find at space stations. The neutron cannon is stupidly overpowered once you have three S class upgrades on it, preferably with one of two of them in a supercharged slot. Sentinel combat is trivialized once you realize that you can collect the canisters they drop simply by shooting them, and your hopped up neutron cannon will crack those open with one shot, and half of them contain shield refills.
It’s looking like I’m going to have to dust off my CD burner.