Find yourself a Radio Control, a Smart Lamp, a Noisemaker, and a few radio activation mods. Mod the noisemaker to look for Green signals and use it to draw zombies away (or towards caltrops/nailboard traps you placed). Throw the smart lamp and activate it with Blue to act as a renewable flare you can turn off. You can mod ONE bomb/grenade at a time with red and explode dangerous enemies around corners with precision timing. Careful not to press red by accident though, it's the default button when you activate the radio controls.

Speaking of nailboards/caltrops, those are my favorite weapon against unarmored zombies; they do not have any sense of self preservation, so they'll just stomp the caltrops until they bleed out if they're in a good spot or have an active noisemaker on them.

You can use permanent markers and pocket settings to make your inventory cleaner. I have an IFAK pouch attached to my backpack that I put a first aid kit in, which I can Open and Close to reduce menu clutter. Inside the first aid kit are ziploc baggies that whitelist one item each, all with maximum priority so that I can easily top off supplies between runs.

Molle storage is the best, be sure to remove all pockets from any zombo soldiers you defeat to grab specialized pockets for your gear.