Are you talking about BZ1 or BZ2?
When you say you upgraded to PB1.3.6... you clearly are talking about BZ2, but when you say you can drop ammo/health on a building from the armory, you are talking about BZ1.
In BZ2 there are recy-variants that allow construction of armory's that can create ammo/health, but in BZ2 you cant use them on buildings, dropping it on them would just result in ammo/health on top of a building.
Spoiler below!!
Counterattack makes you think about how you are going to achieve your goal, you can quickly deploy scavs with the risk of losing them in an effort to get at least 1 powerplant build, but its a lot easier and safer to destroy 1 GT and send you Rocket tank to the S-bay for repair (its out of ammo or soon will be).
This gives you enough room to hop out of any ship and get the unpiloted scavs to your base, and as the training facility works it will give you fresh pilots for your ships. Heal the scavs and make them 'hold' on the S-bay.
Now go to the eastern pool and snipe the guardians there, fly them back to your training facility and you have instantly buffed your defences.
Send the guardians back to the eastern pool and send the 'cornered scav' to the pool. Send an other scav and a cons to the pool just west of your base, deploy scav and quickly get 2 GTs build (you need to deploy a powerplant first using your other cons), hopefully just in time before the set of Titans hit you.
After that its just a matter of mopping up.
Method 2, the strat I tend to follow:
Destroy the armory » power is back on.
Send Rocket-tank to S-bay.
Get unpiloted scavengers, get a pilot in them and get them healed » you need at least 1 of those 2 scavs.
Deploy 1 scav at the pool just west of your base , park the R-tank in front of it.
At the same time send the 'cornered scav' and 1 cons to the eastern pool, go there yourself as well, at the moment you send the scav and cons as you need to destroy/snip 4 guardians before they get there.
Timing is important now or you might be to late to save your western pool from the titans.
Get back to base and get the other cons ready to build a powerplant as soon as you get 30scrap. Race back to the eastern pool and build a relay-bunker, than 2 GT's, than scrap the relay-bunker.
Move back to base and build an other powerplant.
Move on to the pool just west of your base and build a relay and 2 GT's.
Help defend vs the 2 titans coming in through the west.
Deploy last scav and build up to 3 GT's there (2 will probably do, but I lost a GT there in the past so I just build 3).
Upgrade all 3 pools.
Rebuild your armory.
Start building up a force or finish the game solo.
Somewhere in between you might want to build 1 to 3 new GT's in front of your base, the existing ones are bound to be destroyed at some point.
) I notice that you can not longer send supplies ( health and ammo) from the armory,
