[quote=Andae]
No, that sounds pretty much spot on, since the SAS see the Para's as beneath them, and the Para's are somewhat jealous, so, the rivalry is already there, whether they knew each other prior to the game or not, perhaps, despite their former affiliations, they have a more 'friendly' rivalry, as opposed out-right competition they would have had between one another at first encounter within the RP, due to previous knowledge of the other's existences.
[/quote]

Most of the SAS are selected from the paratroopers, and as I understand it all Paras are cycled through the SFSG in their careers. I haven't heard much about a rivalry, although I suppose theoretically some Paras may be jealous if they applied for SAS selection and got rejected. That's these days, though, it was somewhat different back in 1950, so... I dunno about this jealousy/rivalry thing. But the personality of your character is easily enough to somewhat antagonise mine.

EDIT: Also, yes, I'm British, as is Andae. Seravee and Lettie are American.