Strange - just naval variants of ludo!
Real Uckers is more tactical - and involves scoring the hacks achieved. The game finishes when the first team get home, but the winning team is the one with the higher hack score. This adds an extra dimension; if you are behind in hacks and in danger of getting home, a sacrificial self-hack may be advantageous to go back to the start, then syph out and hack the opposition. Spotting this ploy, they may not be keen to leave one uck lurking whilst diddlying-dumming another....
All mystery to yoof of today, I guess. Who probably go to a 'gym' (whatever that is) rather than practise team building and tactical mental development playing uckers in the smoky corner of a crewroom over a mug or three of 'standard NATO'.