Also consider to put some Armor, at least on your scouts. The Alloy Vest is really good to begin with and cheap.
It does only have some restrictions, adding 2 weight and reducing stamina by 5 and increases survive chances somewhat.
I have 2 of these now, they will come in handy I expect!
Personal Armor was not changed and is the same as vanilla.
Power Suits grant you a big boost in weight you can carry (+10) and add stamina (+30), same for Flying Suits.
You need two Alien Engineers to unlock Powers Suits, see Research Tree.
There is also a lategame Versions called "Reinforced Power Suits", and "Reinforced Flying Suits".
They both have additional armor and grant +10 TU additionally to the weight reduction and stamina increase.
Normal Power/Flying Suits can be easily upgraded into reinforced versions.
I look forward to seeing these, in my original play through I got to power armour but nothing more.
Also you can neutralize the amount of engineers early on by letting them produce Motion scanners and build up a small production force.
Depending on your playstyle aiming for a dedicated production base could also be a option. Laser Cannon production helps greatly getting your finances in check.
I have plans for the USA base to become exactly that, and as a second strike base.
You were actually right to scrap the Interceptors, even thou keeping at least one with a Alloy Cannon and some Avalanches is handy to shoot down scouts. The Airgame changes greatly once you get Retaliators and Laser Cannons, enabling you to also target and shoot down Terrorships, but you need to group up at least 4 and might still loose one.
I got that view when they got owned in my original play through. I got the idea of 2 skyrangers from Meridian's Hawaii challenge lets play. Seems to work well.
Aim to get and protect some veterans at least a handfull you will need them
EDIT: I am looking forward to your first Snakeman Terror Mission, even thou be ready for Chryssalids getting some Elerium Rockets might be a livesafer. Did you attempt the base attack?
EDIT2: I am looking forward to the next episode
Started recording Episode 19 and maybe even 20 for the alien base attack, it should be a good one!