Clash of giants civil war takes the game system from ted s raicerrsquos popular and critically acclaimed clash of giants wwi series to two of the storied battles of the american civil war second bull run and gettysburg cog civil war uses a modified version of the chit pull activation system of clash of giants ii campaigns of galicia and first ypres 1914 while retaining the cog combat system every mostly brigade level unit has a tactical efficiency rating based on its morale training leadersh