Rationalize and justify killing = evil, psycho or sociopath

Sorry my English not good as native speakers.

The origin is this: I served in the frontier paramilitary/police in my country during my draft. On duty in a remote mountainous terrain, drug and arms traffickers shot at us. Me and 4 others reacted in response and killed 2 of them - 2 others are maimed for life. One of them killed was a unarmed mule (drug carrier). He was probably desperate for money and poor. Other smugglers ran away. I didn't get hurt, but two of my fellows did, one lost a leg and has bullets pieces still in hips. The other has scars on shoulder, arm and stomach forever.

However, I never felt the guilt, remorse, nightmares that movies, testimonials, documentaries, fictional literature portrays after one takes a human life. People usually feel bad for the victim's family - like the victim - however bad they were was still someone's son or brother, lover etc. Maybe I felt and rationalized that these people were filth as they were bringing in lethal and horrible things into my country that would ruin lives and would try and kill us to do it. If anything else they would pass things through my country into a neighboring one - causing destruction and pain there. Its almost as if they didn't deserve to live. One for trying to kill us and two for attempting to bring harm to my country and my people. I am kind of patriot maybe lol

I dont enjoy killing or crave for killing so I am not psychopath. I am suprised I might be a sociopath incapable of remorse. Concern is that this may progress in a way and that would open me to be more capable of greater heinous or brutal acts through rationalization.

Anyone feel remorse or feel none for hurt or damage they brought onto others?

Call me murderer or whatever, I am not as it was to protect my friends, colleagues and country.