If you see text that makes absolutely no sense for the game you are playing. For example, playing Red Thunder and finding vehicles named "M1A2 SEP Abrams". This is always a sign of a problem with your installation or an incorrectly implemented player made Mod. What is happening is one or more of your data files (.brz) are either missing or being incorrectly overridden by an incorrect Mod in the data folder.
If you have Mods, remove them and see if the problem is solved. If so, go to the correct Mod forum and check to see if there is a solution available.
If you do not have any installed Mods, check your Data folder (Mac users have to right click and "Show Package Contents") and look for missing BRZ files. Usually there is one BRZ for each release. Reinstalling any version you see missing should fix the problem. If you are unsure of which BRZ file(s) may be missing open a ticket with the Help Desk and include a screenshot of the contents of the Data folder along with stating your game version.