I'm not sure if this will help you, but I made my way through a few of the vet zones with Dual Wield. The set up I used was the following (with 5 medium and 2 light pieces of armor):

Puncturing Sweep
Toppling Charge
Blood Craze
Steel Tornado
Blazing Shield
Flawless Dawnbreaker

Puncturing Sweep and Blood Craze gave enough self healing to keep me going through the larger pulls, Blazing Shield was definitely useful for Dolmens and World Bosses, Steel Tornado is a great AoE, and Flawless Dawnbreaker for the passive effect.

I would usually jump into a pack of mobs with Toppling Charge (since DW has no gap closer), use Blood Craze to get a self heal going, use a couple Steel Tornadoes, and then a Puncturing Sweep or two. Rinse and repeat if necessary. I found having a couple of class skills in my rotation was helpful to keep me from draining my stamina bar too fast and some of the Templar skills are good compliments to DW.

On my alternate bar I would usually have Breath of Life for emergency heals and Blazing Spear and Reflective Light for some AoE ranged damage and Nova as my ultimate. The other slots are flexible depending on what weapon you want to use. You mentioned you use a 2-H sword, so you could use Wrecking Blow which is a great single-target damage skill and Executioner which is a great finisher. But the setup I used worked really well with my playstyle, so I rarely needed to go to my 2nd weapon.

U want a dps templar? Play a dragonknight!