'Templates' don't scatter, Olli. Blast Markers do, to which the OP is not refering to (although it still applies
).
OP, members of the same squad are ignored.. for LOS and cover save purposes
only, not just ignored completly. So, you still must be able to place the Template without touching
any other friendly models, including the guy's own squad-mates.
This is why guys with such kinds of weapons (even in real life) are generally up in the front, so they don't hit their friends, and to compensate for their shorter range.