counter battery fire

[imij607]

high all, been playing sp for quite some time now...however i just got a new pc and put winsp on my laptop. anyways, i'm still confused on the whole conter battery thing. i was under the understanding that as long as your artillery didnt fire it had a chance to counter battery. well since i put in 4.0 i havent seen one counter battery fired. is there a change in 4.0? i have been playing in the veitnam time era...i know the russian 130mm arty has tremendous range, but my 105, 155, 175 and 8inch dont even fire on the 76mm off board arty. pretty frustrating. i do love the blast radius function however. Also, can you have tubes counter battery if other tubes in the formation are firing...for instance an off map 105 platoon, some fire on enemy others are turned off (ie blue not yellow in color -- you know how you can turn some weapons off ect ect). would having a FO unit on the board help with counter battery...??

thanks for listening...any help would be great....