I bet he made you lose water in first place.

Well in the end his little porc fortress had ~75k metal worth.

It was no the porc who saved your ass, but the newbeness of the other team.

Porc can't move. Porc is no treat to you. Porc is metal which is not spent into units or economy.

If you own 1/2 the map or greater AND:
If you see 1 Anni, make a fusion to overdrive your mexes.
If you see 1 Anni and 1 DDM, make 1 fusions to overdrive.

Or invest into a missile silo and tacnuke the Anni - not the ddm.
After that you can use a napalm nuke to blow up enemy wind, mexes and nanos or kill a fusion with it - somehow they have to power their Anni and DDM.

If there are only a few shields but 2 fusions, you can use 1 tacnuke vs the shield and 1 second later a tacnuke vs both fusions.

A good trick: set missiles to wait with [W], shift-queue your targets and you only have to release wait with [W] again - much easier to coordinate.

If you kill the Annihilator, the enemy lost 1500 metal and you only 600 or 1200 to tacnuke the fusions - not the anni itself. You have invested only 800/200 metal more and still have that silo.

But be sure to either attack before they use the metal from fusion wreckages or to use 2 tacnukes to also kill the wreckage (not so efficient, because the heap remains).