Hee hee! I think you mean Hollowfaust, which means you are gaming in my favorite setting, the Scarred Lands. There's not too much information out there about Scarred Lands Halflings. Yes, you shoul be pretty good with a sling and sling bullets (rocks) but it is important to note that in general, Halflings are looked down upon (pardon the pun) in most of Ghelspad; Ghelspad being the continent on which Hollowfaust resides.
Halflings do get some respect, but in the most unlikely of places. The Calastian Hegemony does grant Halflings some rights. Some view it as pittance for what amounts to slavery. Some halflings take a great deal of pride in Calastia, however. I would ask the person running the game (usually known as the Dungeon Master or Game Master) is they have a book entitled Calastia: Throne of the Black Dragon. In it there is some information about Halflings in the Scarred Lands. I'd also ask if I could glance over Hollowfaust: City of Necromancers/ There is some great information regarding that city-state in there, as yuo might expect. Last and certainly not least, I'd ask if they had either of the two gazetteers, the DM SCreen Companion or Campaign Setting Ghelspad as all of those have brief, but useful tidnits about Halflings in the Scarred Lands. I hope that helps some. As far as what is available online, I hesitate to mention anything, because Ive not found much. If my esteemed fellow, Nightfall, has not posted whilst I was writing this reply already, might I suggest asking him for more specific information as he has access to certain other things I would be reluctant to hand out, as it is his blood, sweat and tears, so to speak. Best of Luck!