Debate continues over whether Stone Age people were peaceful or warlike - See more at: http://www.ancient-origins.net/news-history-archaeology/unexpected-and-gruesome-battle-1250-bc-involved-4000-men-across-northern-020781#sthash.h5pXjAK8.dpuf
I think I’d guess warlike.
Some wit said that human history has been one of long wars with an occasional outbreak of peace.