no things aren't that obvious. you are unable i think to differentiate between lawful and unlawful killing and also the application of the verse in war and peace. there are certain rules to be followed. i have answers to these very questions. but unfortunately in urdu. after eid me and a brother will translate everything.. as for your last paragraph it is discussed in my post below which i just edited (also check out a video i added in the middle of the post)