So I was swapping tactics with a fellow Commorite today, particularly with regard to the Visarch and made an interesting point.
If a Visarch (and his unit of Incubi) use a Soulburst action 'During the Shooting Phase' to charge a unit (If that is possible) AND Do So Through DIFFICULT TERRAIN, would the 'Charged' unit be able to overeatch? Would the Visarch (unit) strike at Initiative 1 or because they charged during the shooting phase, would they strike at normal Initiative?
Also, there is this interesting FAQ question,
Q: Using a Soulburst, can a unit make a charge when they would normally be prohibited from doing so (e.g. after arriving from Deep Strike, after Running, after Regrouping, etc.)?
A: No (with the exception that a unit that is locked in combat but no longer has any models in base contact with an enemy model may do so).