Using Time Fuzed and Guided munitions - itc-addons/ITC_Land_Systems GitHub Wiki
This page will give a quick rundown of the usage of various munition types.
Time Fuzed
When using time fuzed munitions, ensure the BCS engagement page has the correct shell type selected. If the shell type is selected correctly, the TOF on the solutions page is the time the gunner needs to put in to the time fuze This applies to shells like ICM, EXTRA and Illumination.
Guided
When using guided munitions, high angle firemissions should always be used for maximum reliability.