The first one has the chest, pants, boots, gloves and gear of Boykin. The arms of the surf wetsuit. The helmet of the TIR Outfit. The backpack of the looters. The rope of the Hangman Boss. and the chem mask of TK's mercenaries
The second one has the same as above except the pants of the standard SWAT outfit.
Just unzip the file and pick either the SWAT pants or the rope and place all the files in a unpacked npcs.big file, repack it and your ready to go.
Warning: this will copy over your TIR outfit and Hygiene mask, so back em up.
To wear the whole outfit, just put on the TIR helmet, the hygiene mask and the TIR outfit.