Well...you can't carry OC here at all, so it's concealed only.
Going to have to let others tell you the best means, ways and methods, as I'm still waiting on my CCW.
I have a Glock 21, and have just ordered a Safariland holster, but it will be for when I'm home, going to get a tactical light for it and night sights. For carry, so far I'm leaning towards a Glock 27, but I really like the Sig Equinox in a .40 as well.
The Glock holds more rounds and is smaller and lighter and cheaper, but the Sig, just feels like an extension of your hand...at least my hand, it's like it was custom made for me. And it's a looker too.
Decisions...decisions. I'm thinking ofjust getting both.
I'm thinking right now, get the Glock27, then get the rifle I want-a 6.5 Grendel, then go for the Sig.
It's hot down here, big difference from MI - that should be a consideration in whatever way you decide to carry it, harnesses are pretty much out of the question because you can't wear a jacket. I'm thinking hip holster or crossdraw probably the best as far as heat is concerned, but then you have to be sure your shirt covers it and in such a way that your not constantly having to worry about OC'ing.