Emergent gameplay from unit interactions

I think that the most interesting thing about RTS games is when somebody takes the existing mechanics and find something completely new to do with them, thus completely surprising their opponent and potentially creating a new paradigm.

Playing Forged Alliance pretty regularly, I see that every sort of creative play possible seems to focus around transports or radar jammers, and the reason for this seems to be that both modify an existing unit so that it can be used in a new and unexpected way.

So the question I ask is other than radar jammers and transports, are there any units or mechanics that could be implemented that act as some sort of pivot-unit and could act as a modifier that have not previously been implemented in games of this type?

It's clear that any sort of global buffs or upgrades are out of the question, but are there any unique individual unit types that have could increase the diversity of stratgies in new and interesting ways?

Using FA for a couple of examples of what I'm talking about, the UEF T2 gunship can carry one unit, this means that it can drop any T2 or lower unit anywhere it can get to, and if it has a Cybran ally it can turn itself into a stealth gunship by picking up a mobile stealth generator. This has a huge amount of flexibility and encourages out-of-the-box thinking.

Also transport related, I saw a replay on Forged Alliance today where on a small map (Theta Passage), one player went entirely against the accepted build order for that map, marched his commander into the enemy base, crippled everything important whilst upgrading to T2 air and then used a T2 air transport to get his commander out of harm's way before he got surrounded. Genius.

Please make suggestions for ways to increase unit interactions.

Did you see my thread in the backers lounge about unit interactions?
Climbable walking platforms.
Real shields(not energy but out of metal), barriers.
Maybe units that throw other units.
Jump pads.
Bullet magnets.

Real shields would be very interesting if they blocked radar, and units that throw other units could create interesting situations where you could through units path an enemy's natural hill defenses.

Jump pads, I'm not so sure, but overall, I like your ideas!

Those are great ideas!

took a second, but then i realized...

Make it possible for units to ride on top of other units. Endless possibilities.

What about units that Taunt other units to attack them ?