Uhm, uhm, it is EGA. But it also has CGA, Tandy, PCjr, tweaked EGA and MCGA graphics. PCjr is not displayable in DOSBox for a not-only-PCjr game (you have to go for Tandy). Tweaked EGA is probably not fully supported by DOSBox. MCGA is only addressed in VGA mode in DOSBox and only if the game lets you choose it manually or when there is no other VGA graphics.
The attachments are - in this order - CGA, EGA, Tandy.
Or perhaps you meant
Firehawk?