Ghost Recon Wildlands - Ghosts say no to drugs

I too picked this up on sale and have started playing. It has a completely different feel to Far Cry in the way it plays. It’s also, so far, taking itself way too seriously.

I’m having difficulty understanding the sync shot activation. I hit Q to tag an enemy, one of my guys, “gets into position,” then gives me an affirmative, “ready.” Then I hit Q again. Then I hold Q. Then I hit Q like 10 more times.

At some point, my guy who was, “ready,” actually kills the target, but that moment is about a good 10-15 seconds after I expected him to do it, so at times another enemy has walked over and now I suddenly have a group on alert.

What am I doing wrong?