Alright i took a look
First things first, clean up your research and focus down on these research points, you have too much going at once.
1) UAC
- Gives access to Dragonfly, which is a 8 troop, fast infantry transport, pretty much essential upgrade to your helicopter, plus its fast enough to "outrun" some Cults units like Apaches on the globe
UAC contact also gives you access to craft weapons for your interceptors like the cannon.
2) Xenonauts
- Gives access to armoured vest, which is 28 frontal armor for your infantry, it takes 30% less damage from bullets, it makes your men really hard to wound with low caliber weapons like pistols and pretty much makes then almost invincible towards shotguns, it also comes with a shield variation which has 38 frontal armor, together with taking only 70% damage from bullets, your agents with shield should have no problem tanking submachineguns and rifles.
3) If possible, try to research Church of Dagon operations, its the last prequisite for Osprey, you need to research a living Dagon Sorceror/Chosen fo Dagon
Osprey can carry up to 16 soldiers and can use heavy weapons for its gunports, meaning Osprey can fight against low level cult vehicles and destroy them.
3) FINISH TERMINATING RED DAWN ASAPOr else there is a negative -500 misssion (concealed only, super short timer) waiting for you, its possible to finish it before it pops up but you really need to pull scientists from everything and dump them all on this project
Misc.
1) Once you get above the water, you have at your US base, 6 eligible soldiers for bio enchantments, bio enchantment, despite the sanity penalty is pretty much no brainer for me because its one of the very few ways to boost carry capacity which is essential as you get better armor which is also heavier at the same time and otherwise limits your soldiers possible firepower, its also problematic with weapons like miniguns that are heavy already.
Only mechanized armor otherwise helps you boost your carry capacity, like power armor, which is end game.
I also took a look what are these white dots, they are MIG fighters or Helicopters, not UFO (And probably all the dots walking on the map are Cult units, not aliens), meaning there is a cult base somewhere
You are in for a hell of a fight, if you use your van (van cannot be spotted by globe units), you can force move it to certain location and patrol, this lets you detect enemy bases in the area, here is what i found in Europe and i must say, i do feel pity for you actually, by sending the van to Europe, i instantly found 2 bases, one for Red Dawn and one for Church of Dagon.
Here is the thing that actually worries me, Manor number 13, there are, at minimum, 13 bases on the planet of Cults on the planet.
13
I...it will be a really tough fight even if you could slip a helicopter in there, Cult Manors, while far from being that difficult, are something i only ever attempt to do with armoured vest and Dragonfly at minimum because you do face alot of enemies at once, you are against RNG timer of reinforcements (which can be savescummed btw) and the map is total shitfest with next to no cover for your men (hence armor is important)
BUT, these missions will give you ALOT of score due to the bodycount and the loot you get from them, so if you can savescum your way through them as you did for the whole campaign already (0 dead soldiers in Feb 1999 is sus with your nonexisting protection gear and looking in the possible research stuff, you had quite some harder missions already done.
If everything else fails, i can simply do some voodo background magic to the save file so you will get good rating at the end of the month anyway regardless of what happens. Though i prefer you would do the hard and honest work of save scumming first and use the latter as last resort so you your work doesnt burn up like paper
But anyway it is kinda late for your campaign anyway and will take you a herculean effort to make it up for the time lost, by the 1999, you should be ready to get to promo 3, if not have promo 3 already given the real game now begins with aliens invading.
IF, you have a save, PRE 1999 of in game time (And pre December 1998 just to be sure, its possible with save file edits to reverse the clock and give yourself more time to sort your shit, like giving you extra year to mop up Cults before the meatgrinder starts with aliens. Once the invasion starts, there is no going back with clock editing.