Here is the scenario.
A sqd is being hit by the GK psy-power Warp Rift & failed their Deny The Witch roll. Among the models hit by the template of the Warp Rift are an IC & the unit Sergeant.
Warp Rift entry:-
The target unit must take an Initiative test for each non-vehicle model hit. For every test that is failed, one model is removed as a casualty with no saving throws allowed. Vehicles hit take a single penetrating hit.
Now, can the IC & the Sergeant who are being hit by the Warp Rift benefit from the LOSr to avoid being the casualty?