Together, we are the United Nations
Gunulfr ok Øgotr ok Aslakr ok Rolfr resþu sten þænsi æftir Ful, felaga sin, ær warþ ... døþr, þa kunungar barþusk.
1 - Do I understand this correctly in that if I remove 4 unbuilt LCUs from the Corps Assets Box I can replace them with the 2 new corps on the map?
If this is so why would anyone ever build the 4 LCUs in the first place?
Perhaps they had a pressing need for LCUs?
2 - I notice several SCUs have a box around their movement value. Is this to mean these units have restrictions as to where they can go? I can't find a rules reference to this.
Yes, see 3.2.2 and 18.104.22.168.
3 - I'm thrown off a bit by the 2 different color types of "S"s for the Senussi in Egypt. Can the Senussi go into Sudan and Darfur? I believe the rules said the tribes can go 1 space beyond the tribe area but Sudan is 2 away as is Cairo. If they can't go that far, who is represented by the smaller S in the spaces?
Tribes can go a full move away from their home spaces (see 22.214.171.124). The green S's are for the spaces where the Senussi can rise, and the white S's are for the connections that are Senussi-only.
4 - Also, the rules list 4 different spaces as CP Limited Supply spaces but not Hejaz which has the same LS supply symbol as the other spaces. Is it a CP LS source?
The Hejaz has been accidentally omitted from the list of CP Limited Supply sources in 14.2.1 (ref).