Are you sure you were never in the paras???
There is indeed, or was, an all arms jump course where sailors, like Marines, can get their wings without p-company. In 5th Airborne Brigade, as it was, everyone went through pre-para, p-company and became 'proper paras' but we were badged to different corps. So, 9 Squadron, 7 RHA, the field ambulance, REME even the cooks, everyone has done the full para training. We even shared the same town, and trust me, the only distinction between us over the weekend was the motif on our maroon or green t-shirts. If it was raining or cold, then everyone just had a Barbour jacket, jeans and a pair of Desert boots.
Oh the other difference of course was that the other corps could read the KFC menu and not just have to rely on the pictures