Straight forward question
With my new 'Achtung! Cthulhu' books in hand, it occurred to me that SA would work great for that setting. It generally builds around a small team of individuals raiding a site of occult activity to stop or disrupt whatever is happening there. The current weapons in the rules would cover most standard firearms (using dynamite for grenades), as LMG's wouldn't be a common weapon for sentries, and could easily be worked out with current rules if needed.
That's the thing I love about these rules, there are so flexible - currently considering using them for 'Dark Age, Wild West, VSF, 1920, WWII and Modern', all without much modification.
Creeping Horror in so many era's, Lovely.