i 95% sure those cannon will NOT be OP.
a few reason:
-they move slow & not accurate
-they can easily be knock down
-they r relatively expensive
actually the main reason is that thye r slooooow.
if anyone is soo stupid to make like 6+ cannon.i'll be LMAO.
i'm 98% sure that it will be a burden!!!!!!
why? while u spend so muhc resource on making ur seige..ur army size most likely be smaller then ur enemy. thus more likely enemy will destoy ur army while its moving to enemy base! no matter how powerful ur cannon r.......it'll most likely be destoyed before it can be deployed.
EVEN if u manage to get ur cannon deployed n ready to attack. wil u let it auto attack? or what? if u let it auto attack.it'll attack unit closes to it, what if a few unit run into ur army....then ur cannon will fire at that battle....thus damaging ur unit too!
now even if u micro ur cannon, it'll try n destoy that enemy unit......but what if they unit is like running in circle (just set like a bunch of rally point)? it'll never hit that damn unit. now even worst. if that unit run away from its LOS, then the cannon will packup & try to chase after that unit. which mean u need lots of USELESS micro when u ahev lots of cannon!
btw i set my army usually into 2 group.i never make huge army (only when i want to be a noob). which mean ur cannon most likely be ineffective vs. unit ,since what kinda player will let his stupid gun infantry to stand still near eachother to let cannon attack them.
n remeber those cannon effect which keep on rolling.like some of u say................if it is true, then u can kidna like sent over a few raider over to enemy seige factory, n if ur lucky to find one attack u............go like near building.n it'll like start knocking down their own building.
so how the hell u guy get the idea of OP?