hey! dont degrade yourself its great to hear your input.
anyways, luck/karma, basically the same thing lol, but the battle system, will be like:
do you: shoot, duck under a (table/desk etc.) surrender, etc. right? and when you say duck, it calculated whether you are fast enough, and whether the shooter is reactive enough, and whether bullets have already been fired (because if it hasnt, element of surprise, if bullets have been fired, someone is already trigger happy). when you click "shoot" it will determine whether, A) you are able to aim (so did it actually hit or miss) and therefore it calculates your speed, the opponents speed, then it calculates, where the shot went, and it also calculates whether the opponent is responsive in firing with good aim/bad aim, a load of stuff is gonna be calculated!