These are the official Ranks for the KWD Clan. For each rank there is a different emblem. Each time you grow a rank, you change your emblem to the next rank.
In order to grow in the rankings you need to earn Clan EXP or experience points. (separate from official Halo 3 EXP) See this page for more details on how to get EXP.
Here is the official list of rankings along with images of the specified Emblems:

Novice Rankings

Whelp

Recruit, or someone who just joined.
EXP: 0

Apprentice

Has shown a little activity and progress in the clan.
EXP: 2

Gnorc

A hearty fighter that puts out an effort to win and be active in there new clan.
EXP: 5

Rhynock

Have proved themselves in battle and make a worthy clan member.
EXP: 10

Gnasty Gnorc

A true clan veteran who is merciless in battle and also makes a sincere effort to be active.
EXP: 20

Elite Rankings

Ripto

An elite and dedicated member of the clan who helps the clan greatly.
EXP: 35

Wielder

A leader and highly respected clan member who is in league with some of the best.
EXP: 50

Dragon

The highest rank of the KWD clan. Enter the Dragon.
EXP: 75

Special Class Rankings

Blacksmith

A Clan map maker who helps make maps for Clan playlist and also teaches forging techniques to those in need.
Must show a few example maps to qualify.

Leadership Rankings

Spyro the Dragon

The almighty Clan leader; Number Zero.
KWDzero

Blindsite the Dragon

The Co-Leader aka second person in charge. If there is ever a point in time when the Clan Leader is absent, the Co-Leader must take his place.
xBlInDiNgFoRcEx