Using resources on a dot command is not necessary. Anytime you blow something up, write down the code. 
It won't take you long to memorize them all.   ie.  bab  barracks, gng autoguns, bas manned guns, rdr radar, shp if you want to know which ship was sunk, 00 being the cv,
vhh for vehicle hangar......and it works at the strats too........C01, C02, C03  ect.
Once you know one dt dot command, you'll know them all in no time. Have fun.
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