Certainly, here's the revised version with corrected grammar and punctuation:
**Bang! Bang! Bang!**
As the throngs of the undead army attacked the ark, they encountered a formidable protective formation barrier that shielded the ark.
The barrier, a shimmering, translucent wall of energy, stood as a last line of defense against the malevolent horde.
It glowed with an otherworldly hue, crackling with power that seemed to hum through the night air.
Outside the protective barrier, the Undead soldiers moved with relentless determination.
Their decaying forms pressed against the magical shield, their grotesque faces twisted in grim determination.
The eerie night bore witness to their siege, their hollow eye sockets aglow with unnatural malevolence as they relentlessly battered against the barrier.
Inside the barrier, a tense atmosphere hung in the air like a thick fog.