I need to make it so certain ranks be to certain teams can i get help pelase?

I am creating a group with multiple teams, It's a military group. So if you were in TRADOC you would get ranked to the Training and Doctrine Command, Military police to the MP group, ETC.. and also an Officers group, Who would be O1 to O10 and some group rank like 10-20. And Finally. anything above 30 is ranked to an Army Staff team...

I am clueless about any of this, Please help.

You would have to use if statements, providing that you have defined the player you could do the following:

if  Player:GetRankInGroup(GroupIdHere) >= 0 then -- change the 0 to Rank id, which can be found in group admin within' roles.

Player.Team = game.Teams['TeamNameHere']