sounds like reasonably normal behaviour if theyre young
He gets told off and a tap on nose but this doesn't seem to bother him at all!
like children,cats dont differentiate between positive and negative attention. he wont see this as a reprimand (shouting will also be ignored) just that he has succeeded in gaining your undivided attention
to show your displeasure in behavior the best response is to totally ignore them - body language is very important, dont look at them or interact with them until they stop. its not always possible but as much as you can and if you cant, as little interaction as possible( pick up and plonk down without words or eye contact or petting)
for breaking up minor fights and tit-for-tats between them, distraction works best. throwing a toy or rustly scrunched up paper.
your elder male may be asserting his top cat status.it might quieten down on its own as the pecking order is established- have they lived together for long?
The night time races is hard to stop completely but play sessions to tire them out before bed, leaving quiet toys out or irresistible sleeping places should help. one of mine is very lively and loud but now contents himself with quiet play and bringing me toys at night rather than racing about and winding the older two up
theres a behaviorist called Vicky Halls that has written some advice books and totally recommend reading them, as much as a preventative measure as to fix existing issues. shes also quite funny