It is uncommon to fire all six shots of a revolver with great suddenness when one would probably be sufficient, but many things in the life of Herbert West were uncommon. H.P. Lovecraft, "Herbert West--Reanimator"
This page contains some resources useful to those playing and watching the progress of the campaign. Most of these are adaptable to the campaigns of other Keepers.
Call of Cthulhu is notoriously unsuitable for campaign play. Here's my list of house rules that adapt the standard rules for better and more fulfilling campaigns.