Now kismet is called “level blueprint” (in my opinion the level bp works the same as kismet) 
When you use UDK tutorials, just watch the ones about materials or particles, because that’s still nearly the same + there are some useful UDK tutorials around that will explain you how to create cool effects (e.g there is just one UE4 rain tutorial which uses a particle system, but there is also a UDK tutorial that uses a mesh)