This is part of the rule section for the sniper:
For his sole action of an impulse,
the NATO player can place the
sniper on any unit located in
Tanenhause. He then rolls 1d6.
On a roll of 1-4, the target unit is
The sniper is a NATO unit. You place it on targets that you want to shoot at therefore you would not put it on a NATO unit... I hope...