What is this book I am thinking of, it's driving me mad!!!?

Question:

What is this book I am thinking of, it's driving me mad!!!?

As far as I can tell it's either 'Dogs Of War' by Forsyth or 'Dark Of The Sun' by Wilbur Smith.

All I can remember is that it's about mercenaries in Africa and one of them is homosexual. The team finds (or takes over, etc) a train, and the gay soldier gets left behind in a carriage that wasn't connected to the rest of the train, and the main character watches as the train pulls away and all of the bad guys swarm up in to the carriage with the gay guy, presumably to kill him (I have a suspicion that he might kill himself, but I am not sure).

Like I have said I might have the details wrong as I am kind of clutching at straws here...

I know this is really hazy but I did read it absolutely ages ago, any help would be gratefully received!

Additional Details

1 week ago
100% sure it isn't The Wild Geese

Best Answer - Chosen by Asker: 1 week ago
100% sure it isn't The Wild Geese