Fausts will fire outside their arcs
In this test a German squad is equipped with 4 x fausts (ringed in white)
(black line is its broken HQ link)
I order the T-34 to roll forward on 'move'. When it comes within range (30 metres because these were Pzfaust-30's),the squad immediately fire a faust at it (grey dot) even though it's outside the arc.
(For the record the squad fired all 4 fausts during the turn,1 penetrated but did no damage, and the other 3 missed)
I re-ran the test but this time I put the squad on 'Hide' and it
didn't fire.
Moral- if you want your units to hold their fire, slap a 'hide' on them.