[Mobhack]

There is a mortar section with 2 single mortar elements, and a mortar section with 1 mortar section element - which contains 2 tubes.

Personally I prefer the elements which combine the tubes, since they plot together and drop together, thus producing more concentrated effect on target. And also, they reflect the use of a mortar section - which would have only 1 mortar board on which to plot fires with, and one radio.

The 2 single mortars allows the section to split fires - which could not be done easily, as you would need to do 2 sets of calculations on the one mortar board, and also probably try to differentiate between the spotting calls from 2 separate observers, using the same frequency since the mortar section would in reality only have the 1 radio. Also, in SP they will fall separately and need individual adjustment if you want the 2 tubes to hit the same area (the normal case) rather than drifting about all over. Since SP considers each artillery piece a "fire unit", you can also have one of the tubes being off the radio net when the other is available.

The 2-tube (or 3 tube) mortar element solves all those problems.

The single tube element is sometimes handy to put in a small jeep, but otherwise is a pain.