The actual config seems to lack the items for english language support:
class Helicopter: Air
{
...
class SpeechVariants
{
class Default
{
speechSingular[] =
{
"veh_Helicopter"
};
speechPlural[] =
{
"veh_Helicopters"
};
};
class EN: Default
{
};
So the actual community addons may have the same issue, when they include the complete config. The patch for the 505 release should solve this and add support for english language in the config, too.
Although I am a german native, I perfer english language in online games, so I wait for the demo and at least 505 release / patch.