3.What conditions must be met in order for a location to be controlled by one side? Is it true that units must remain on a location during game end in order to claim them or must they just stop there once during the game or can they just march trought such locations in order for tokens to be replaced by those of the house to which a unit is part of?
4. Razing the Red Fork. Stark gets 1 VP for each controlled house, 1 for wood bridge and 2 for stone bridge? Despite the fact that stone bridge is easier to defend ... then wooden one.
And Lannister gets 5 VPs for EACH razed house? Lannister can burn down like 2 houses and there is no way in hell Stark can amount enough VPs to match that. Or did I miss something?
As for the earlier question regarding how Cover/Toughness affects the hits on the tactics part of a leadership card, I think you should email FFG customer service. I don't believe there is an official response yet and it should be added to the FAQ/Errata. Also, they won't answer the question unless you email them directly.
As for Razing the Red Fork, the big difference is that Stark gets the VP's every Round and Lannister only gets VP's at the end of the game. So, Stark needs to immediately send out units to secure objectives, then try to hold off the Reavers and Kevan and his support units. The time that we played, the Reavers had a lot of trouble burning buildings, so Stark built up a huge lead getting those points turn after turn.
Hope that helps. Please report back if you get an answer on that tactics vs. Cover/Toughness question.