TSB - Monster Activation question re Trolls & Demons

[Archduke of Earl]

I have a question for my fellow "The Silver Bayonet" players. Some of the monsters in TSB, in particular the Troll with its rock-hurling and the Demon (and its mini-me the Possessed) with its Demonic Fire, are "equipped" with always-loaded projectile weapons. Do you therefore strictly follow the standard rules for monster activation, wherewith the Troll will always hurl rocks rather than charge (even though its Melee stat is higher than its Accuracy, and its melee damage is +2 vs its rock damage)? Or do you modify the standard activation rules, and if so how?

Same question for the hellish ones, whose Melee stats are higher than their Accuracy although the damage is the same.