The power of the Lasercannons (primary broadside weapon) got a considerable nerf back in Beta.
This was justified back then because the Ankylon was nearly invulnerable with Furios Defense affecting shields too.
So back then in addition to a nerf to furios defense its broadside laser firepower was reduced from arround 180 to around 120 per volley.
That nerf was probably to hard. I propose to give it back its orginal firepower and I also propose that the beams gain not only a bit more firepower but also a slightly larger arc. If its lasers and beams could fire on the same target, it would solve many issues.
For the firepower increase, the special Tec Rebel beam upgrade could be moved to the Loyalists. IDK if it is possible to give a weapon a wider arc with a research, but if it is this research could be made so that only after this research the beams have a wide enough arc to fire together with the lasers.
Balancing justification:
The Ankylon inability to make more then a dent into any other Titan at a remotly similar level has the result that a smart enemy will simple rape your fleet first - something group shields does a very poor job at protecting it from, then bomb the planet and then finally killing the Ankylon.
No doubt, other changes are in order to make the Ankylon competivly again. None of those changes are however going to be overly useful as long as anyone can just ignore the Ankylon.
The funny thing is, that the Ankylon in its current form "might" be a pretty balanced titan.... but the problem is that it is very poor compared to the other titans.
Ragnarov Titan = Juggernaut of destruction... kills your entire fleet... with group shield or not
Coronate Titan = never ever dies..... Supression Aura makes any direct assault very hard... and impossible for the Ankylon... a level 5 Coronate will withstand a level 10 Ankylon.... forever.
Eradica Titan = Chastic Bursts..... instead of dying within 10 seconds your fleet dies within 12 seconds... thanks to group shield.
Vorastra Titan = Group shield or not.... I will just suck your fleet in. Not to mention that the Vorasta is overal more powerful then the Ankylon
Kulturask Titan = probably more powerful than the Ankylon.