I'm not familiar with the mechanics of AD&D at all and haven't played many games like this before (I played Dragon Age: Origins). I tried looking on the web but there was very little information.
I'm a Chevalier (Paladin/Fighter) with proficiency in long sword and 1 sword / 1 shield style. Playing Baldur's Gate 1 in BGT.
There are 3 size of shields, and I don't know what the advantages and disadvantages of each are?
Best Answer
IIRC, Baldur's Gate used fairly accurate 2nd Edition AD&D Rules.
In 2nd Edition AD&D, the size of the shield translated into the number of attacks per round that the shield provided an armor bonus against.
E.g. a small shield would provide a +1 bonus (+/- any magical modifiers) to only the first attack in that round. A medium shield could be used to block against more attacks per round than a small, and a large more than a medium.
The downsides of larger shields are weight restrictions (the bigger they are, the heavier), and class restrictions (some classes are restricted to small shields.
edit: I could find no reference to indicate whether BG implemented this rule. However, this site shows that larger shields provide additional bonuses against missle attacks.