Since the FE tree is RCT based, use the Lancet for fighting, in conjunction with the 10 Handgun tactics 5 retaliate tactics shirt. Load up the 5 CT and 10 RCT abilities in the Corpsman tree to improve your rolls, and load up combat toughness.
Add some Dodge Ranged and Viral Resistance Clothing [you can heal and sweep, so hackers should be no problem, and your VR will let you live beyond stun], and you should be all set
IS and Health Regen clothing is the way to go, besides the aforementioned VR and DR stuff. If you have good HR, you can tank through fights, and if you have good IS regen, you can use more abilities like Dodge Bullets, Combat Aura, and have IS in case you need to heal.