So at the moment I'm playing through a Japan campaign in Victoria 2, which is Paradox's pseudo-realtime complex conquest and development game simulating from 1836-1936. The Brits obviously start the game with a huge advantage (as do the other European powers) and indeed, Japan starts as an uncivilized nation, with major penalties to research and the inability to industrialize among other things. There is however, a path to becoming civilized (which Japan can do through the Meiji restoration decision) and indeed by 1878, I'm in a war with my allies France and (uncivilized) China against Great Britain and the North German federation in an attempt to take Northern India. In this war, about 2.5 million men are fighting on either side, and there will be about 3 million dead (mostly through the British and Chinese armies marching over the Himalayas) by the time the war is over.
In Victoria 2, each soldier is a member of an individual 'pop' living in a certain province, and having its own needs, incomes and political positions. In this war, there are many conscripted regiments who belong to specific 'poor strata' pops of jobs such as farmers, laborers and craftsmen (which I will note, separate men of working/fighting age from women and other parts of the population). Each death on the battle field decreases the size of the 'pop' by the same number of men. Also, I've enacted policies of minority building restrictions, and a discriminatory schooling system to speed assimilation.
By this rationale, aren't I doing worse (in both war and peace) in a single playing session than all the Call of Duty players can do in a similar session combined?