As a Healer, your job is "givin' immortality to your teammates" So it's a hard way, 'cause you'll never shoot on ennemies.
But this is why the Healer is so appreciate in a group.
By the way, I can tank too. My Support Station give me so many heal. That's amazing !
Ok. The build
34% Skill haste is enough. The Station gives you 15% so you've got your 49%
Health only on your chest. Your heal is so huge, you don't need more health.
And your 1st Aid comes every ~15sec ;) in emergency.
On the Mask, Knees and Bag, Skill power. You want the maximum as you can.
Your Station : 30,000HP/s
1st Aid : I switch a lot between Overdose and Defibrillator.
(Good players know the game and stay near the Healer. But most of the time, specially with random group, you'll see runners trying to facetanking. Defibrillator is for them.)
LWM4 (or LVOAC) with Responsive (or maybe Destructive) in Free slot.
As a healer, rushers love you. It's always good to have a few DPS. That's why I use Responsive and not Determined.
[Determined you need to kill to activate it. That's really not a good choice to me. I heal. Not kill. I tank rushers. The rest of the group kill them.]
10% DMG is always good with your poor DPS. And at long range, I never shoot. I keep my group alives.
Healer it's a choice.
My second weapon, the MDR. Just in case for long range. You can switch to a Marksman, but with 12% AR DMG on your gloves, MDR is good choice.
I stack some Stability on my mods (I'm a PS4's player)
My sidearms is a 204 Custom PF45 because I want Coolheaded. Far way better than Determined. My point.
Triage / Critical save / Combat medic and Battle budy (Reduce DMG is so good)
And that works with The Station and Defibrillator too.