What other unit types would balance this pen and paper war game?

1 Tank > 3 Infantry

4 Infantry > 1 Tank

1 Jet Fighter > 2 Infantry

3 Infantry > 1 Jet Fighter (but it moves twice as fast, so avoids fair fights).

4 Infantry > 1 Mech

1 Tank > 1 Mech

1 Mech > 1 Jet Fighter

1 Jet Fighter >> Tank (Tanks can't hit air in this game)

1 Elementalist (spell caster) > 3 Infantry

4 Infantry > 1 Elementalist

Then I have a medical transport which can carry ground units and heals or repairs all inside units by +10HP per round they remain inside. It moves as fast as the Jet Fighter to bring ground troops around on the map.

I was considering having a heavy bomber air unit, but it might be redundant.

What do you think of this balance setup?

I realize infantry beating a jet aircraft is unrealistic, but they have slightly advanced laser weapons, not just small arms fire. Aircraft are primarily used either as Worker harass or to counter enemy Tanks when your opponent has over-committed to a tank heavy strategy.

What other unit types would balance this pen and paper war game?
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