I don’t know why people use the A-10 against bases - there are much more viable options available in the US tree for that role, e.g. the A-7’s, or also the A-6 if one wants a premium. Or of course F-111 and F-4 in RB, as there their CCRP is actually working.
The A-10 is unmatched against tanks & co., but really not suited against bases, especially because of its speed.