2 quick noob questions

[barretta]

G'day folks. Haven't played in a long time and just re-installed the game.
I am running the gwx 3.0


1. The colour of the targeting triangle when looking at the target via UZO or Para..
Does it mean seomthing? Seen Yellow and Orange.. and Red once.

2. I've read how people target different parts of the "target". Assuming the triangle is where you are aiming how do you move it while locked on the target?

Many thanks!