Using the minimal changes the steel legion could be picked to become the following...

450 3 Thunderbolt squadrons
500 2 Marauder squadrons
250 Infantry company
100   Fire support
600 2 Vulture squadrons
250 Infantry Company
300 2 Hydra battery
250 Infantry Company
200 Deathstrikes
100 Sentinels

Add a few bits of airfield terrain and is it a believable aerodrome scratch defence force that would be fun to play and have a chance?

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'Abolish red trousers?! Never! Red trousers are France!' – Eugene Etienne, War Minister, 1913
"Gentlemen, we may not make history tomorrow, but we shall certainly change the geography."
General Plumer, 191x

It looks like an interesting army, but shouldn't that be 2 Hydra batteries for 300?

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Fear is for the enemy, fear and bullets.
-James O'Barr, the Crow

Yes

You could make it as Navy as possible with the following

450 3 Thunderbolt squadrons
500 2 Marauder squadrons
250 Infantry company
600 2 Vulture squadrons
250 Infantry company
600 2 Vulture squadrons
250 Infantry company
100   Firesupport

But its probably a bit to fragile to be much fun.

_________________
If using E-Bay use this link to support Tac Com!
'Abolish red trousers?! Never! Red trousers are France!' – Eugene Etienne, War Minister, 1913
"Gentlemen, we may not make history tomorrow, but we shall certainly change the geography."
General Plumer, 191x