Archery is a good skill because you can aim and kill people without making noises. and you can always make the target wobble around by shooting the leg so you can survive more with being pressured or run.
You can also use this for hunting rabbit but you must be in a bush or tree as long as you have the tree icon green and near the rabbit.
the more skill you have the faster you can aim.if you hold down the aim it'll changed the crosshair to red which means its locked it wont miss
2star can make you aim head body and legs.