His role in DB is to kill solo targets and to quickly get in and out of combat. His only source of dmg. is his (dual knife or some sort of katana). He has no primary or secondary guns (for secondary maybe like a stun gun, but that is optional).
Role: Assassin
HP = 80 and his speed is better than proxy/aura
1st. ability is flash grenade and for 2nd. ability stun grenade
Flash grenade: upon explosion will flash all nearby enemies and for 2 seconds will indicate on your screen where enemies are located.
Stun grenade: upon explosion stuns nearby enemies. The effect is longer for those who are closer to the explosion. Stun effect will reduce movement by 90% and turn rate by 95%. Enemies are still able to shot while stun effect is on them.
dual knife: left click is the same as normal knifes but are 50% faster, left click deals 100-150 dmg. depending where you hit him and you are able to use left click once each second.
katana: left and right clicks are the same. Deals 150-200 dmg. depending where you hit him and you are able to use it one every 1.5 seconds.
For his augments he could have one to reduce effect of flash grenades on himself also one that could allow him to wall run. His best augment would be to reduce recharge time for dual knife and katana for 0.25 seconds.
hope you like it! 
ign: SeaStorm