Drones of some sort and a scud launcher ?

A navel unit that can shoot down satellites would be very usefull imo..right now now sats are uber over the water, actually i would love that ability for the tier 3 gunboat, instead of that stupid aircraft bay...

Laser fire units with a limited range, but not for close combat

I give you ideas and you modify-improve or nerfe as you please. You can also give it the name you find more appropiated.

Sentry Gun improvement - Build a Sentry Gun in a hill tile removing any tile yield (like food, culture, energy or science) -2 energy maintenance and 1 negative health. But it works like a satelite with a rank of 2. The downside is that whenever is build, it will not produce anything to benefit the city. It could also have an option for "auto-fire" making it attack any alien unit within range.

Hybrid Tank - a range tank that when embarked can only attack water units and when in land can only attack land units. With 2 range and it obey the class movement depending where it is. For example when in water it benefit from naval movement bonuses, when in land it benefit from land unit movement bonuses. To make it more interesting or less over-power, it cannot attack cities.

Hybrid Ranger - a range unit capable of melee attacks. It can attack enemies cities, but its range is considerable short forcing it to get close to the enemy to attack. (Because i think is dumb that a range unit cant conquer cities, but i understand why its done that way.) It can have the half the strength of the marine units for melee and the same strength as the 1st range unit for range. In that way people would only use the melee option for conquering cities if its get down to it. Is not OP since it has to get close to a city to attack.

Land/water mines - place a mine in a tile that will activate whenever an enemy step on it, dealing damage equal to 20% of its health. (downside is that it can tigger wars if another nation step on it by mistake) since a mine cant be detected that easily.

Mine detector Unit - An explorer like unit capable of detect mines 3 tiles away from its location. Unable to attack enemy units, but it can deactivate (attack) the mines from far.

Berserker - a melee unit capable of auto-attack aliens. For those who focus on military virtue but hate having to move their units every turn to attack aliens. Downside is that once its set to auto attack, it cant be stop, so it will continue attacking until its die ignoring its health.

I would like to see a stronger, longer ranged aircraft. Perhaps a range of 10. I was a big fan of the stealth bomber if Civ V.

Missiles!
Planet buster and Fungal (sorry, Miasmic) payload :- ))