You might have a hard time finding something with more than one bathroom for $2,800 but there are a few. Rents are much cheaper in IB but the schools are bad. However, if you work on Coronado, you have a good reason for requesting that your kids go to school on the island (not a sure a thing).
I think military are regarded in a positive light. However, we had a verbal agreement to rent a house here and the landlord ended up renting to a civilian because their last renter received new orders after only 10 months and moved. They were angry that they had to let the renter go because of the military clause and did not want that to happen again.