A battalion of tanks drove through the Nevada desert, large clouds of dust trailed from behind the metal war machines.
-"Command to T2-9, target has been sighted moving northeast, 30 clicks. You have the lead, shoot to kill order granted." The grumbled voice over the vehicle's speakers informed.
The tank's pilot pressed a few buttons and spoke to the rest of the unit,
"T2-9 to all units, target is 25 clicks ahead. Target is approximately 8ft tall, grey skin, and tough as shit. Shoot to kill. Over"." The tank leader spoke.
Then a large figure flew from the right, smashing into the armored formation.
"All units, contact! Right side, T2-5 and 6 are down!" He shouted.
The tanks started to slow as their target lept onto one of the tanks, ripping off it's gun by the barrel and slinging it into another tank.
The target, a muscular 8"7' tall female with grey skin and black stringy hair with blazing red irises. Her name is Sara Grey, who transforms into a grey-skinned monster when angered(or high stress/adrenaline, etc.), and gains immense strength, stamina, endurance and a healing factor. But whenever Sara transforms she has little to no control over herself, she refers to the thing as simply "the beast".
The military had been hunting her and she'd been on the run for almost two years.
The beast dug her hands into the thick steel and savagely ripped the military vehicle apart, then a cannon shot her from behind. The damage was short lived as her durable skin and healing negated most of the damage. The tank fired again and she was barely able to doge it, being blown back by the cannon's projectile. The beast became even more enraged and let out a beastly scream, the grey amazon lunged at the tank and started to beat and tear at it. The beast quickly made work of the last two tanks and sprinted away, kicking up massive amounts of dirt and rock as her powerful legs carried her quickly through the desert.
Not even an hour later, a hail of bullets rained down on the grey monster. She dug her feet in the groud, the desert ground cracking as she stopped, then used the momentum to launch into the air and crash head in into the attack helicopter. Two more appeared and tried to shot her down, the helicopter the beast was on swayed as it struggled to balance the weight. The gray skinned woman pushed herself away from the helicopter, sending it flying towards the other, she landed on the ground as the explosion sent debris everywhere.
The beast looked at the remaining military aircraft and threw a peice of the wreckage at it, the metal debris stabbed right into the cockpit and the last helicopter came crashing down. She gave a primal roar and continued onward.
The grey beast was just outside a small town when the sun was coming down, it's energy exhausted and temper cooling down. The beast shrank into a 23 year old woman, with long black hair, light skin and hazel eyes. Sara collapsed on the ground, garbed in nothing but shredded panties and the remnants of a shirt.