Your best bet then is to check out the wiki as I'm sure there will be a page dedicated to the war assets. Otherwise, it's probably better to discuss the details over on the endings spoiler thread. Unlike ME2, if you start a new game in ME3 Bioware have pre-crafted the a background story for with the plot flags. I don't know if changes depending on which combination background/service history you pick (though that would be cool), or if it's the same regardless. Either way, I'm sure they've left players with a fair chance at still getting 4000 points.