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...always played the undead mod in the first chapter...-...that increases the difficulty of the 2 hardest battles (palisade & Torak) by far - so the tactics may differ a bit to the unmodded game...
...the best tactic at the palisade battle is a "covered operation":
- let the rogue with evasion & the best reflex save sneak on caballus (or was it sullabac?

) if this rogue is quite fast and / or better can cast MMI or MI you have a 100% success chance
- melee attack caballus and he will throw at least with his 2nd spell a fireball at you and this will normally end in a mass suicide!
- with MMI or MI the fireball will just hit your image with evasion and maxed reflex save you have a very good chance to take no damage!
- if to many enemies survive run back to the rest of your party
- btw. you can enter the building with the healer at each point of the palisade battle and get unlimited free heal all!
against Torak the Pal 2 - Sorc X is just great (as in most critical battles in the early game):
with solid HPs, several MI and excellent saves you can just send him in the enemy crowd and then backstab and flank the enemies with the rogues you have - (2d6 extra sneak damage each turn (means each attack in the early game until L5 or L6) is quite deadly in chapter 1 & 2!
...the bridge shouldn't be a problem, as you should have already a powerfull party at this point of the game - just take the time in the 1st 2 or 3 rounds after entering the map to cast all available buffs on your party - instead of running directly into the battle!
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