Is this really needed?
I don't think KD ratios and other scoring systems show anything in PTP. This is not a plain simple TDM game, but a gamemode with a specific task for every team. I believe you should get a greater reward if you complete the task assigned to your team. The more challenging it was, the better the reward should be. And also a penalization if you fail to complete the task. When I say task, I say killing or protecting the president. Given the generalized objective of getting easy kills while ignoring the president in order to get the highest ratio, yes, I believe this is really needed.
I was thinking about point system in ptp some time ago, but the way you make it, it is pointless. I see many numbers, but what is the point of this system? Getting points to have... more points?
Yes, scores are a way to quantify your achievements and you can use them for comparisons between players. I believe there would be interest in gaining points, like it happens with the current stats system. I don't think that making a shop to use those points to buy features is a good idea, rivalry between players should be the only incentive.
Yeah, that was a quick approximate idea of how it would be. Anyways, if this is implemented the formulas shouldn't be public. Just to prevent players from coming up with fraudulent ways to earn more points.
About your modifications:
- I still believe securities should be penalized for killing someone away from the president. It's ok in some situations, but in most of them it's not. You can say it's a way to pressure them to head to the president
- If you don't lose points when killed, what would prevent Mr. X and his friend from making a deal to kill each other so they both earn points? And also, how would cops and civilians lose points?
- I don't think terrorists should lose more points the longer they take to kill the president. That would cause players who are concerned about their Elo to vanish from terrorist class as soon as there's a president who will presumably take long to kill (someone camping on a NRG or in a very remote area, for example). Also, if it was like that, terrorists would still be penalized if they killed the president but took too long. I don't think it's fair.
- Yeah, I agree. Civilians shouldn't get a bonus. Not because of the reason you said, but because they don't have a specific role in the gamemode and, for that reason, shouldn't be encouraged.
- I would penalize for sniper or chainsaw use, but not that much... you're suggesting 60-70% penalizations, that's a lot. It's not that easy to get a kill with those weapons.
- If points were given for giving damage, then points should be substracted for taking damage. Otherwise, what would Mr. X and his friend from damaging each other and refilling at armor, so they both earn points?
It's not that hard to script, it's some simple math and SAMP parameters that need to be checked. The real difficulty is to figure out the perfect amount of points for each achievement so they accurately quantify the effort it takes.