not sure which stats ya want , so here goes...
after loading radioman in red circle at harbor, left clik radioman, then clik the stats button in the box that pops up...this shows team win/loss record for your account...
for checking kill stats on a particular BO, put cursor on that BO, right clik once-shows his ability as operator...right clik again-gives you breakdown of his sinkings by ship type and toal ships sunk...right clik again-back to his regular ability stats
hope these are what you were looking for...notice this does not compare your advancemant to other players...that will show in the nf.com rankings system when you are in the top 10,000(think thats the correct number)