If you look at the Wiki Squads there are many of the newer squads that do not show up. Not sure if it hasnt been updated in awhile or if there is now way to update.
i got that feeling the some just found one squad after another, so maybe its too much work for some
the wiki is mostly player added content not HTC, up to someone in the squad to add the info.
dkf49 is correct, you have to go in and add it to that page also.
--)-Musketeers--- 22nd anniversary as an operational Squad! --)-Claymore--