Having a compass and, more importantly, the skill to use it is a must-have piece of gear. The good old lensatic compass has served me well for many, many years but since being outside the Army I’ve become a big fan of baseplate compasses for their simplicity and light weight. I’m personally a big fan of Suunto compasses, for their long-term durability and accuracy. The MC-2 is the gold standard, followed by my trusty MCB as an EDC.
I’d also check out MyTopo.com for maps and if you want the closest you’re going to get for a civilian-side Blood Chit, check out Burnt Point Lodge for silk printed maps.