These three are some of the best Micromaster sets. The three of them are probably the most difficult to track down of the US released Micromasters. The Micromasters that each of them come with are redecos of the Constructor Squad. These are the only redecos of the combiner sets.
The first of the three is the Missile Transport. It comes with Retro and Surge.
They can be hooked up to the transport in vehicle mode. All three can store every piece in this mode.
The second mode is the missile launching base mode.
The base can split into two small vehicles for the Micros as well
The second is the Tanker Transport. It is piloted by Pipeline and Gusher.
The vehicle mode lives up to it's name.
It's base mode is interesting, it looks like a missile pod with a pair of guns. All of them can attach one ramp to the back and three to the front.
Their vehicle modes aren't the most convincing.
Lastly, the only Decepticon set, the Cannon Transport, It's pilots are Cannon Head and Terror Tread.
The base mode is pretty heavily armed.
The small vehicle modes are a little more convincing
If you can afford to get these, I highly recommend them. They are a pretty neat set. Each of the halvecs of the bases can be interchanged just like the combiner Micromasters.
A MIB shot of the Tanker to show how they came.