Commander Maeve Gives brief overview but won't go into detail as she assumes that Barkley would know most of the information and just need a refresher on pressing issues.
DC persuasion or deception starts at DC 14 and increases by 2 each time more information is attempted to pull from Maeve.
Successful Commander Maeve will provide information freely and if she doesn't know finds out from other Commanders.
Failure Maeve will grow suspicious of the requester and try peer through any disguise (Insight +1), no matter the result she'll only provide basics. If she sees through the disguise she'll alert Arhtek and trigger the return of Duke Miguel. While trying to keep up the ruse to throw off the players

Is an older but still very strong Lizardfolk of Mulburg, arrives in town in the evening.

Has no knowledge on current events, was dealing with a group of “terrorist” dragonborn in the marsh near the city. Once he learns of events requests to take command from Barkley as he works closely with these troops. If declined he'll grow suspicious (insight/investigation against seeming/disguises (+3)) claiming Barkley doesn't seem to be himself “Are you alright friend?” (Insight DC15 to find if he knows) either way wishes to leave and check on the troops.
If see through disguise becomes nervous and tries to contact the Duke or Lord reducing the time the group has before Miguel's return.
If not leaves and continues preparation as normal

Departed Ironpoint by sea toward West Watch two days ago. Departed Whitkin yesterday by sea toward Naporia. Each shipment contains 10,000gp. On successful convincing she'll provide the full remaining transports

Duke Miguel gets 3,000gp
Duke Nygell gets 3,000gp
Lord Oddo gets 4,000gp

3600gp on units currently in Mulburg
700gp on training new units
550gp on upkeep accross region

Only 3 spies are within Greyhawk Forest, they're left to their own tasking but send a report every two weeks, only High Commanders and higher view the reports and are destroyed shortly after.