Yup, I second that Gami, HL jumping and dropped mission team generally tends to get around having to do standard missions between your crits.
Also, each area of the Megacity has a limited amount of mission 'spaces'. SInce some of the crits require specific location types, these spaces are reduced...so it will be more difficult to have them appear frequently somewhere like Mara C than it would be for a desolted part of Downtown.
After doing the first critical, I ran the rest of mine in Lamar
