I am very careful whether to use "WAR!" or not because I think it largely impacted the power scale, which can ruin the game if not used carefully. That said, there's a lot of equipment and even some parts of settings that I actally like and kinda miss in my game

Back to topic (just so this does not derail much further, though I played my part): I favor to have both options at hand. My current character carries pistols as main weapons, so having a pistol with live ammo in the main hand and a taser in the off-hand comes in, well, handy. the taser might get swapped for a gun with non-lethal ammo if range is to be considered. Sometimes there are people coming at you who are not really a threat (e.g. most mall cops) or you want to see them live through this (e.g. VIPs, children trying to pummel you with their lunchbox).
Short: The less the threat, the less lethal is the response.
Then again, once the real guns get to be drawn, that character jumps straight to heavy weapons...