I think Tactician is hard, VERY hard with only 2 chars, which is why we can't afford having a "okay-ish" character. putting points in Bodybuilding and Willpower is mandatory lest you can spend entire fights on the ground waiting for it to end. Ennemies will focus twice as much on you since you have half the characters.
Meaning you'd need defensive capabilities that Marksman doesn't provide anymore, meaning you'd have to raise your defenses, Marksman, and something else on the side. At this rate, you're just better off dropping Marksman entirely as it doesn't bring any utilities other than special arrows ( which do not even require Marksman to be fired I think ? ). What's more it requires some heavy focus on Dex which barely benefits other classes.
In the end there is almost nothing to be gained from a Marskman character except maybe some slightly better damage. It may be a better idea to go dual wield Wand / single wand+shield.
Marksman is in this not very nice place where it is almost exclusive to any other archetypes as it doesn't depend nor really bring synergies to other "classes", while also not being enough as a standalone...
