Final Measure support station healer build for group pvp. This is slightly less tanky than how you should run FM when using a pulse. If your team has another healer you can switch out stam mods for electronics mods. You always want health on the kneepads and backpack with healer builds. If you want to increase skillpower it is more efficient to do it via mainstat (adding electronics and lowering stamina), than it is by adding skillpower rolls to knees/backpack. You don't have much survivability with just a defib and your dps teammates' boxes and boosters, so when you do not need determined, switch to sidearm when finishing a downed enemy to proc predatory and get a little extra self healing.
First LVOA is the default healer AR that you would use with virtually every PVP healer build. Secondary LVOA has responsive rather than determined, for some extra damage in the rare times that you will ads in a close range fight, or to kill tougher NPCs more quickly. You will only be ads'ing at safe long range, or when you have stamina/damage buff or survivor link active. You job is to stay alive, be ready to revive teammates with green or defib, and stay in range of your teammates to catch grenades and use combat medic. If you are playing FM healer correctly you will usually be the last to die if your team is wiped. You should use CHD gloves with a pulse, and CHC if you are using support station. Headshot damage mods because you should be getting mostly headshots, and you need to be able to quickly kill NPCs to proc talented/determined.
*note - When your teammates are running smg damage gloves with house primary: run support station build, one teammate should run conceal pulse, and all dps players should use precision talent (gives 12.5% CHC and 25% CHD). If they are using AR primary weapon, use pulse build and all teammates do NOT use precision. The reason is that any build with house primary will be around 45-51% native CHC, with precision bringing crit chance at or near the 60% cap. A FM pulse on a proper build will be anywhere between 27-31% CHC, which is essentially the exact same damage as precision when using House. Critical hit damage is additive, so the effective actual damage difference between 25% from precision or 28% from a healer pulse would be equal to ~2 striker stacks, so essentially nothing. Because you are running triage and will be using heals frequently, your striker teammate running conceal pulse will be getting it back 15%-45% faster, so don't worry about cooldown. The healing from the immunizer and very fast cooldown will be extremely useful for you and your teammates' survivability, and it allows you to run lower stamina as a healer safely (so you'll have stronger heals).