So what it is necessary to leave? Good question. Say me, what it is really necessary to keep under control when you shoot at the enemy? Right, it's weapon stats and health. I played a small amount of games so I remember CHUD only in Portal and ETQW.
In ETQW CHUD was like this:
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I offer this option or something like that.
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However I consider that lines of HP and energy aren't necessary as they are in HUD. So here new pic:
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I think other HUD elements which you have drawn is better to leave on their old places. Because we already can see which weapon we don't have and I guess we will have more grenade types.
Against this idea. Currently in game during firing the cursor extends, showing how the weapon has strongly heated up. Also, in 2.5 we will have the recharged weapon. I guess HUD will look so:
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