Need more Modifiers in official Portal modes

After creating my first mode in portal, I first have to say that even in official modes, the amount of control we have over player experience is an 8/10. Lots of options allowing for (mostly) precise choice between normal rules, hardcore, and everything in between. However, despite this being my first attempt at creation, I still noticed a couple glaring omissions immediately. 

First, and perhaps most importantly, is the lack of granular control over player health. As-is, you can only change the base health pool, regeneration, regen speed, and downed behavior. This is fine if you simply want to craft a basic or slightly-altered hardcore mode, but not if you want to do anything special. What this section needs is body part multipliers. While many casual players may care about "consistent" TTK, and dislike being 1-framed, hardcore players truly want natural avenues for skill expression (such as high headshot multipliers) and the ability to down players quickly IF they can aim well enough. At the very least, adding adjustment for the headshot multiplier in official modes would get us a long way. This is in Portal already, as I later found exactly this setting within the unverified mode creation tool, so I don't see why it can't be added here as well.

Second, and also important, are by-vehicle health rules. My reasoning here is, despite the fact that users of both tanks and helicopters (for example) might feel their vehicles are at times too weak, or pedestrians may find them too strong, the adjustments required of these two types of vehicles may not be the same. Removing vehicle regeneration, for example, may hurt air vehicles far more than it hurts tanks (who can be manned 24/7 by engineers). Adding 20% health may give tanks a small advantage, while making helicopters an unmanageable threat to infantry. Being able to apply changes to specific vehicles would allow creators to fix any potential issues created by such tweaks. 

Third, and as a bonus, suppression. This has been a hot topic with the community, but creating an option to activate more punishing suppression effects (such as those seen in Battlefield 3) may help to settle the debate. Giving us the opportunity to experiment with different levels of punishment dealt by suppressing fire would be an extremely fun experience. 

I hope this advice is well-received, and can result in some positive changes and fantastic custom games. Thanks for reading.