The overseer frowned as he heard the uncivilised message, then shook his head. Such idiocy, how could they not understand war was not the way forwards? And such a hypocrite. Of course, they had foreseen this. As for this new contact, why bother fighting it? If the holier-than-thou Equestrians were to ignore it, why shouldn't he? It wasn't worth the sacrifice to destroy them, then. He pressed a button and transmitted a message back

"Hypocritical exogen, Your actions are nonsensical applied to your goals. You care not for others suffering, else you would not encourage bloodshed and evil. You do not see what lies ahead when the stars have failed and the children are dead. There is only greed in you. We pity you."

He tapped another button and sent a message to the ground forces "Protect the beacon. It is the only way to end this battle without a river of blood. We shall remove it once peace is established, until then we will fight and we will die to protect it. Axios!"
A bridge officer turned to him and spoke "I always fought the Equestrians would be helping us."
"The Equestrians are a populist movement, they don't always understand that sometimes what the people want isn't always the best option"
"Indeed, but in this case why do they do it?"
"Obviously they think the 'oppressive trinity' can't be removed without destroying a few trillion lives along the way. Typical Exogen beliefs."

Colony 257...

The balefire megaspells impacted with the habitat walker, and one of it's legs were blown clean off, causing it to collapse down, immobolised. It's energy projector was no longer functioning, but it's other weaponry was online, and it was making that known, using the warp cannons on forces that were being brought down from space. The spell came down towards the Assembly walker, which turned and fired its dark energy caster. The Dark Energy met with the spell in the air, causing both to detonate overhead. The resulting explosive eclipsed the sky for a moment, and burnt with the brightness of a sun. The Assembly walker turned and stomped off towards the Psionic Amplifer...
The final spell smashed into the shield around the psionic amplifer, but it slid around the shield, devastating surrounding terrain but leaving everything under the shield intact...
Now it was the Collectives turn.
One of the evocatus entered the atmosphere, and powered up it's energy projector on low power, before dragging it across the enemy forces that approached the psionic amplifier, the area for miles around being scorched and uninhabitable, turned to glass. There was something else within the shield, something giving off immense energy signatures... then there was a flash and there were more Collective forces within, digging in and preparing the area for combat. The beacon it's self sat inside a cave atop a mountain, and the shield was set up so that forces could shoot out but not in, allowing Collective snipers to shoot enemy hostiles without fear of returning fire. Turrets were set up all around the area...
A division of Aerial Synth soldiers shot out of the shield, firing at their opponents forces. Behind them came gunships, which fired warp cannons into the enemy ranks. Attack, after attack, after attack. Energy projector shots from the evocatus, Hardlight, Dark Energy, warp cannons...
There was a chasm surrounding the shield now, as a result of the megaspell, and with a single land bridge crossing it A team Aerial Synth soldiers moved to the bridge...
As if in spite to the Equestrians actions, the Triarian ships broke off from attacking the seeder ships and moved down to the planet... the evocatus flagship hovered for a moment, before vanishing and coming out on the far side of the planet, seemingly leaving the battle.

At the entrance to the cave containing the Psionic Amplifier, two Triarii worked as fast as they could to arrange something

The phase tanks split into two groups. 60 of them hovered into the air, then turned, their 'wings' changing slightly before they launched across towards the beacon, thirty activating their phase generators and thirty not having done so. Upon arrival, the thirty attacked the enemy as those with phase generators moved up towards space, heading towards the Equestrian ships. The remaining 40 also activated their phase generators and passed straight through the defences of the colonial militia base, literally going straight through anything which tried to stop them, as if they were ghosts. Once inside, thirty of them disabled their phase generators, while another ten kept them enabled for now. All the phase tanks started to attack, broadcasting a message to the base to lay down their arms

There was a pulse from the Psionic amplifier as it activated, and began to attack the minds of the people on the planet. At first, it was barely noticeable... voices whispering in your head, urging you give up... they spoke quietly and softly... That would change soon enough...