Chapter VI: A knight in shiny armour

Tony flew towards IGOR's location, where it was engaging Killian.
'JARVIS, disengage: he's mine.'
'Yes, sir.'
Aldrich faced Mk.38, while the other armours continued the assault on the soldiers. IGOR sent Killian flying across the platform with a punch, before jumping off.
Killian rubbed his head as the Extremis healed him, again. He got to his feet as the Mk.33 landed opposite him.
'Another suit, then?' Aldrich asked, clenching his fists. 'Tell me, Tony: are you in there, this time, or are you too scared to face me?'
'Not likely,' Tony replied. 'This ends here, Killian.'
'Well, here we are, on the roof,' Aldrich smiled. 'How ironic.'
Tony drew the two blades, and ran at Aldrich, who charged at him, too. They exchanged punches and kicks, and Stark was occasionally able to slice at his limbs, cutting them off. However: his arms kept growing back, thanks to the Extremis in his system.
Killian sliced through pieces of the armour, occasionally cutting Tony underneath. The HUD readout of the suit was reading multiple damaged functions, so Stark went on the offensive.
After countering a number of strikes from Killian, Tony pushed his fist through Aldrich's chest, stabbing him through his heart.
Aldrich gasped, and clutched at his chest.

Inside the suit, Tony breathed a sigh of relief. That was until Killian started laughing.
He snapped the blade off the gauntlet, and with a powerful upper cut, sent Tony back a few steps. Aldrich pulled the blade out of his chest, and threw it to the side.
Tony rubbed the helmet, and grunted, 'ow! That hurt...'
Killian stepped forward, and heated his re-grown arm into another blade. Just as he was about to strike, Tony, out of instinct, triggered the repulsor on his right foot, and sent it, in a powerful kick, straight between Aldrich's legs.
He squealed in pain and fell over, clutching at his injured groin.
Tony smirked inside the suit. 'Yeah, you take a minute. Grow those back.'

'Sir,' JARVIS said. 'The Mk.33 has sustained too much damage to its systems to be able to support you in flight: shall I send another suit?'
'Ok, is Pepper safe yet?'
'Affirmative, Tony,' Rhodey came through on the comms link. 'I've just seen the Mk.42 join the other suits.'
'Thanks buddy,' Tony said, and stepped out of the suit, which slowly flew away towards the other armours. 'JARVIS, send the Mk.42.'
'Yes, Sir.'
Tony watched as the red-and-gold armour flew towards him. He ran towards the edge, and jumped off, landing inside the awaiting suit, and shot off into the sky.