CM runs unable fire cannons on ps3?

[mindful]

Unable fire cannons on the PS3 , also the PSN network causing a massive lag for a lot of us users. If on the PS3 do not even bother playing the game. The PC crowd is moving to fast , before you can even get out the cut scene on the end game content.

[BillyBones]

I'm playing on PS3 and it took me a while to understand how to fire the cannons too. You have to click on them (if you mean the cannons at last boss then load them first). Then there should be a new icon in your skill bar, press it. There will be an AOE field. Place it on the enemy you want to shoot, then press X. That's it, good luck.