Inheritance is extremely useful because like you basically said, it allows you to "inherit" every single property of an object and type only the new things you want to add or old ones you'd like to change. The problem I always have with inheriting player starts/pawns and creating my own actors from them, though, is that when I try to start the game using them it tells me there is no Player 1 start. And of course if I do place a regular Player 1 start, the default actor is used rather than the one I created. If someone knows how to bypass this (I'm sure there's a way), please let me know. Inheritance would obviously make this all much easier because you wouldn't have to copy that big actor definition from the link above and add one measly line of code.