Super simple armor mashup combining Kellogg's armor and the marine armor chest piece. I've been using for myself for a while and i thought id share. Its not actually implanted into the game world so you'll need to use the console to add it. maybe one day ill get around to putting it somewhere. At the moment the stats are low but that because i wear invisible armor with with it so i didn't want it to be op.   

In order to get it in game type "player.additem xx1ecf 1" without quotes, the xx is the mods position in your load order, you can also type "help "marine commando armor" 4 armo" (without the outer quotes, keep the inner ones) and see what the item code is right there. Like i said, its not actually implemented in the game right now, but if you want a good time to get it, i would give it to yourself after you loot your first marine armor chest piece. just my opinion, it has no stats as its meant to be purely aesthetic, so give it to yourself whenever you want.  
  
This wasn't just a simple "put one mesh over the other" mod, I actually did a lot of small little edits and touch ups in Outfit Studio to get rid of clipping, reduce some of the larger proportions, and overall make it a little more smooth and meshed together. The end result is a nice looking "mercenary combat armor" that fits perfectly into the games art style. Especially if you are like me and are not into ultra modern combat equipment and molle ridden vests that looks super out of place in Fallout art style.