Okay, well most of us know the bread and butter strategies for most of the generals so let's get some variety in here.
Post all of your unconventional and unorthodox strategies here (even if they aren't particularly effective), I hope I'm not the only one with some.

GLA Salvage.
Load terrorists into Hips to get flying terrortech. It's actually quite effective as even if the helicopter dies as the terrorists explode with it!
Uniqueness rating: very unique (I found this out by accident and I've never seen anyone else use it before).
Effectiveness rating: quite effective.

USA Laser.
Sentry drone spam. In the current version where they use the EXPLOSION damagetype they are unbelievably effective against everything, and the self repair really helps. The stealth is quite useful against most human players and they are cheap! They are however nerfed for the next version and as such won't be nearly as effective as they were before.
Uniqueness rating: quite unique.
Effectiveness rating: very effective.

USA other.
Sentry drone spam. Same reasoning as above, however the damagetype is different and as such are less effective in many ways but nonetheless still quite useful in their own right.
Uniqueness rating: quite unique.
Effectiveness rating: moderately effective to not effective (depending on enemy general).

China Nuke.
Battlemaster bombing. Don't buy isotope stability until you absolutely need to. Use the battlemaster in close quarters. Useful against boxed in GLA and there's no RAD laming required.
Uniqueness rating: near common.
Effectiveness rating: quite effective.

That's it from me for now, I do have a few more up my sleeve.

Laser sentry spam is epic lame and was used a lot back in the day, it totally owns Toxin general making laser vs tox damn hard. For vUSA sentries better use vees, its totally not uniqua but works 10 times better.

Nuke bm spam is absolute standart against allmost any faction, calling it unique is similar to calling the GLA terrotech or USA vee strategies unique...

A unique strategy would be something like building a battlemaster as vChina in an 1v1 or play GLA witohut tunel spam

Laser sentries were never used when I used to play regularly.

I called the nuke one common by the way.

Well, if you play with a limited number of people also always used to never using Sentry Drones it could take a while before you had found out how OP they were. The laser sentries used EXPLOSION damage type iirc.