Hi Pylon,
Thank you for your response.
I'm creating a rs485 network capable Arduino. On the board there are 2 atmega328p chips. One of them uses the hardware serial to communicate to the network, and uses altsoftserial/softserial to communicate to the other chip. The second chip(which is used as an uno chip and has an arduino layout) uses softserial on A6 and A7(smd chip) to talk back to the 'networkchip'. Now I would like to implement altSoftSerial as much as possible because the way it creates it pulse is more neat than softserial. Also, if i'm not mistaking, softserial interferes with timers, interrupts, millis().
The network can work on a higher baudrate if altsoftserial is used. softserial makes the hardware serial have limits.
The reason why the 2nd chip has to work as an uno is for compatibility reasons. The network consists out of max32 nodes which are all uno's who are able to talk to each other. The network chips takes care of the communications.