[Mobhack]

Look at the change unit command in the editor, and the buy as allies/own side purchase routines. (Find a boat type that can fire indirect (LCS or LCG) in your or another OOB and then edit that, basically - and look at the extended scenario editor Scenhack if you have the full CD game - you can edit the unit icon back to a barge in that).

Civilians are already there in the UN OOB, along with the cars, buses, parked planes etc. Use the buy as allies.friends function.

Rank does not really do much - it is a string. It reflects the skill level of the leader is all, and the name comes from the rank text file for the particular OOB, so try editing the ranks text file?