Shields and Armor
Science are actually very effective melee, so you may consider something with decent kinetic resistance. Heavy and Elite tactical drones love their melee...
For the same reason, a shield with the KB-proc is rather nice.
Consumables
Make sure you have a nice pile of large hypos. 40-60 is a good number. Carry them even if you are going in with the medic kit.
Weapons
For day-to-day usage I run with a melee weapon and an expose weapon. If you don't like mixing it up in melee, carry an expose and exploit weapon. Make sure at least one is single target.
In addition to standard weapons, both Infected and Cure are made easy by specific weapons:
- Infected final boss benefits from having a guaranteed KB weapon. Something with nice big knockback.
- Cure mid-section benefits a -lot- from having a single-target sniper weapon with KB, and/or a stun weapon with a guaranteed stun.
Kits
Like any career, expect to be swapping kits for different sections. There isn't a one-kit-fits-all solution that is truly optimal, so go with a few and just pick the appropriate one for the moment.
I find the Physician kit will cover you for healing most things in a STF. The addition of Dylovene for melee is a godsend, especially for keeping people upright when they've got elite tac drones on them.
Note that with Dylovene III and Melorazine III you turn yourself or the target ally into one of the toughest-to-kill characters in the game.
Infected needs a kit with the AoE heal (triage) on it. Any kit with it will do: medic, analyst, etc.
Cure benefits from the Geophysicist kit for certain content, and the Physician kit for certain other content. Pack both.
KA requires high DPS from everyone, so pack a geophysicist kit for that.
Knowledge of Sci Officer powers
The agro-shake power that all sci officers get should be somewhere prominent on your hotbar. It is how you keep your otherwise squishy self from being targeted.