NEVER land your Zookas with the Heavies at the same time! Their health is too fragile so land your Heavies FIRST to soak up the damage and then launch the Zookas about five seconds later and BEHIND your Heavies.
Space your LC's out a bit so you can land the Zookas amongst the others, DON'T land them "down the beach" where they have no protection!
Before the landings, you MUST take out any BC's in the immediate area! Forget the RL's, they can't harm maxed Heavies so that us why you MUST keep your fragile Zookas behind the Heavies!
And also knock over any Stun Launchers if you have any spare GBE, they slow down your troops too much!
Lastly, leave them all to do their thing, avoid flaring them together as once they bunch up the damage likelihood increases significantly! But having said that, you occasionally need to regroup the little buggers if some of them get the wanders towards heavily defended areas!
MEDKITS are essential as your troops will take damage so keep them as healthy as you can!
Go get 'em!