Do I have this right?

[Montana Grizz]

(Indirect Fire) I plot an M3 105mm Howitzer two hexes in front of an advancing column of 3 separate Engineer Platoons and they happen to stop right in my cross hairs. When my artillery fires, I have the opportunity of doing no damage, some damage, or a considerable amount of damage to more than one of the platoons?

(Direct Fire) If I can see the hex containing the 3 separate Engineer Platoons, I can only fire on one particular one (or two if I can fire twice).

(Opportunity Fire) Given the aforementioned situation, the program would randomly select the particular platoon I am firing at?

Is this then a crap shoot? Potentially more damage caused using Indirect Fire, but less chance of causing damage because of the distances involved?

Is it a wash or is one of the three traditionally more effective (all things considered)?

Thank you,

Pat