Taken From : http://horizon.ucsd.edu/miller/Counter_Strike_UWC3_Skill_Combinations.htm

Counter-Strike UWC3 Skill Combinations:

Offensive Techniques: 29^th level characters

Trueshot Aura 6/10

Vampiric Aura 10/10

Leather skin 1/10

Devotion Aura 4/10

Evasion 5/5

Chain Lightning 1/1

Teleport 1/1

Flash of Light 1/1

Defensive Techniques: 30^th level characters

Devotion Aura 6/10

Unholy Aura 6/10

Evasion 5/5

Leather Skin 4/10

Vampiric Aura 6/10

Teleport 1/1

Chain Lighning 1/1

Gate 1/1

Disruptive Techniques: 34^th level characters

Impale 10/10

Bash 10/10

Banish 10/10

Trueshot Aura 4/10

Mirror Techniques: 29^th level characters

Banish 5/10

Trueshot Aura 6/10

Thorns Aura 10/10

Leather skin 1/10

Devotion Aura 2/10

Vampiric Aura 5/10

Medical Techniques: 32^nd level characters

Repair Armor 1/1

Mend Wounds 3/3

Decoy 1/1

Entangle Roots 1/1

Trueshot Aura 6/10

Banish 10/10

Unholy Aura 5/10

Stealthy Techniques: 29^th level characters

Invisibility 10/10 [+ Cloak of Shadows] [+ Amulet of the Cat]

Evasion 5/5

Unholy Aura 10/10

Flash of Light 1/1

Trueshot Aura 3/10

There are also diluted versions of these combinations. To achieve this goal, you must divide all of the skills by two:

i.e.

Invisibility 5/10

Evasion 3/10

Unholy Aura 5/10

Flash of Light 1/1

Trueshot Aura 2/10

This creates level 16 stealthy characters instead of level 29 stealthy characters.