Now I will suggest some features like an automated grenade throw.
so it throws grenades while we wield weapons when we press a button
there will be a key to change the nade an other key to throw it.
it throw grenades on the release
is we press special while holding the grenade it will activate the timer
once released we throw the grenade and our weapon/weapons pops out again.

see what you want dudes that's up to you guys
I suggest, you do what you think is needed and want

Azarael, the mod gives you complete freedom over what weapons appear in the game and in what slot. Set up your own server if you are unhappy with others. The most the devs can do is to make it the default behaviour to put G5, flamer, etc. into the super slot. But I fully agree about grenade timer bar and iron sights, these need to be resolved.

Azarael, your first and last point I completely agree with, the others I don't.

Yeah the frequency of super weapons in the game, especially Arena and Loadout, is quite frustrating. (Arena, customizable chance of weapon given on spawn?). However, with quick aiming, I find that it's possible to take out the guys with the big guns with a couple of well placed pistol shots. Most heavier weapons are slow, G5 has to fly the distance, flame thrower takes a short time before really hurting, hammer swings all ways when walking with it, etc. Runestorm did their best to balance them out and, to my opinion, it worked out quite well.
Freedom of how the players want to play their game is important. The heavy customizability of the mod provides this freedom.

The big differences of hitting someone in the limb, body or head are there to add to the skill instead of decreasing it.
Yes one can get lucky and shoot someone in the head with recoil.
But one who has good aim will do more damage with each shot, as he manages to hit the body or head more often than the limbs.