Updated for v1.12.
Not big changes, but confer the changelist if necessary.
https://www.nexusmods.com/doorkickers2/articles/47

Enemy Replacer now available:
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3473006974

Big update!
New guns, enemies, outfits, voices.
Plz read the change list and tell me if you find something is wrong.
https://www.nexusmods.com/doorkickers2/articles/47

@Don'tknowwhattoput
Sorry I finally found why you asked.
Not the PMC but the Security wear armor.
Fixed the description.

Do you have some requests?

Will do:
[list]
[*] Voice, from "enemy" to "enemy arabic" for Nowherakian, to "enemy english" for Security and PMC.
[*] Editor tag, "ewg sp" for special units, and multiple tags such as "rabble" etc.
[*] Tweak for traits, similar to vanilla ones.
[*] Flying Grenades to blink red.
[*] New units, Blackhead, Machinegunner OldSchool, and Stormtroop.
[*] Balancing, SSI with Lvl3 armor, M16 Irregulars with crit nerf, M249 Irregulars with 100 ammo, pistol guys (security, faker) with poorer attack type.
[*] Pickup weapons
[*] Cosmetics, Rambo wannabe with tank top, maybe better hats/bandanas for PMC
[/list]

Now I am planning to add faction guys like
Blackhead, Forbidden Trees elite troops, or Shadhavar's Irregulars, with somewhat different guns.

Also to nerf SSI guys, with Lvl3 armor.
BH-barred AP ammo are good, but expensive.
Star-available AP ammo are very niche and weak, so they may penetrate SSI armors IMO.

If you have some idea, please tell me.

Doctrine update launched.
Also frag grenades are tweaked, like most of the vanilla tangos.

A bit more info is written on my enemy guide > "Common Weapons" section, at the bottom > "Explosive: Frag Grenade Enemy" subsection.
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3041568385

PMCs don't wear armor.
This is my intention, but maybe later I will add SSI-equivalents with armor and helmet.

The enemy doctrines update will come within several days.

the PMCs don't seem to wear any armor, is this intentional or planned to be patched soon?

Sorry I forgot to tell, SSI equivalent is still missing.
They equip Western guns, but the high-crit is infamous.
Maybe the nerfed version will come.