Which MOS best gives me tactical knowledge, training and experience while helping me gain some new marketable skills, 12B or 37F?

Hello all, was hoping for some insight from those in the know. I'm 32, have a masters degree and good civilian job supervising child protective services investigators, I was one for 6 years. prior. I want to hop into the guard or reserves, and am teetering between the two MOS's listed above. I'd like a bit of tactical knowledge, training and experience while simultaneously gaining some new marketable skills. Looking for a solid mix of physicality and mental challenge.