Try couple combinations of modules but cant find the best. I hate cloak. I like enable armor and shoot the enemy.
What are you thinking? What modules are the best for such style of combat?

Energy Transfer/Nano Recharge + Covert Ops/Blind Spot + Mobility Enhance would probably be the best for you. Run-of-the-mill build with Stealth Enhance swapped out for Covert Ops or Blind Spot.

Visor Enhancement, Amor Enhancement & Weapon Pro
<3

Energy Transfer or Nano Recharge for armour
Mobility enhance or Weapon pro for power
Covert ops for stealth

Take a look at this guide: http://segmentnext.com/2011/03/22/crysis-2-nanosuit-guide/

My recommendation would be something like this:

Armor Modules
-Energy Transfer Lvl 3; it will restore your energy with each kill, thus enabling you to use armor 24/7
-Armor Enhance Lvl 3; since it will reduce the drain by armor and increase your speed

Stealth Modules
-Stealth Enhance Lvl 3 will really let you rethink about using cloak, since it will remove your shadow and reduce the drain; ninja style
-Visor Enhancement Lvl 3.

Power Modules
Aim Enhance Lvl 3 if you're using something like Scarab, Scar or the Feline...