Siege Train and Sapper Units

[marek1978]

I was wondering whether it makes sense to keep more then one unit of its kind in Army stack?
whether their effect adds up if i have 2 or3 siege trains?

[pantsukki]

At least in previous titles having multiples of the same siege bonus trait didn't stack, ie. there's no gain from having more than one Sapper unit per stack.

Of course would be great to get confirmation from the team

[PhilThib]

The code has not changed here, the bonuses don't add up... BUT the sappers have the the atrribute of "SiegeMaster" which allows the play of siege decisions...which the siege artillery don't....so keeping both is good anyway.