Yeah the big thing with running "missions" is that they are involved sometimes, needing to move from gate to gate or moving to a certain area, while running anomalies you just warp in massacre everything and then leave/ move on to the next one.

Like RobinG stated, the best way to do multiple missions is really to have AFK Drones, that way you dont need to watch the whole time or pay 100% attention.

2 Tengu's and 2 Golems is definitely not overkill, that will actually help a bit.

I use 3 Carriers sometimes 4, 1 Tengu, with a Noctis and a Prowler for salvaging, but that is for running anomalies where its much easier and faster to farm iskies.