SUNTSAG

@StealthhThere was no trigger setup in your example .miz for AtoA refuelling, nor was your refuelling aircraft set to late activation. Having now created that trigger the mission works perfectly for me and I have attached my .miz that includes the relevant trigger. As far as I am aware the “PART OF GROUP IN ZONE” will activate even if the group does not enter that zone, so I have used “UNIT IN ZONE” as that option is currently working correctly.
SUNTSUPDATEStealthhs' F18 Training.miz

@DST  Naval and ground troop helo ops are not currently compatible within DCS. Therefore for your specific mission requirement, you are going to have to have the AI emulate it as best they can. I have attached a simple example mission highlighting how I would do it, with the information you have provided. I hope it helps. Cheers
helomi8&24.miz

@DD_Friar If you set the weapon hold as the first instruction then it should stop the issue you are encountering. Please refer to attached image and example mission. I hope this helps. Cheers.

M1A2TEST.miz

Hi @Rudel_chw the only way I can think of to achieve multiple user presses of the same switches is as per the attached simple mission format attached. I hope this helps. Cheers.
PTTF15E.miz

This has the potential to be user error as the Tug is selectable during 1944 so long as the watch is not selected at the bottom of the screenshot. Therefore I cannot recreate your suggested bug. I hope this helps.Cheers

@CH4Pz there is no bug and simply user error. I understand you are new to the ME so to help you out, I have attached an image that explains exactly what the "CONDITION" settings in DCS actually represent. I hope it helps for your future mission builds. Cheers.

There are so many variables attached with such a requirement that it makes it difficult to deliver a complete solution.
Is there an engagement prior to reaching the zone?
 Is the flanker running for the cover of the SAM site?
Should both aircraft re-engage once the flanker has left the protection of the SAM site?
I have a basic solution in the attached example but I have no idea if it meets all your needs. In this example the aircraft will re-engage when the Flanker leaves the protection of the SAM zone.
ENGAGEDISENGAGE.miz

I am not sure if this is exactly what you are trying to acheive but I will post a manually created option for you that can work. There is a "UNIT SET LIFE" trigger available which is based upon a percentage. In the image provided I have set the units life to 30% at mission start. A simple .miz file is also provided and I hope this helps. Cheers

UNITAISETLIFE.miz

No FARP is required simply use the "LAND" adavanced waypoint setting and remember to use meters as your altitude settings for spawning your troops, as per the attached simple example mission. I hope this helps. Cheers.
testheloland.miz

Add a stop condition to your follow command (eg Flag 901) then activate your task push to land. See if that resolves your issue. Cheers.

The BGM 109-C is a precision weapon with a built in CEP of 10m (32 feet). It has guidance systems of GPS inertial navigation and terrain following radar. It is NOT an area bombardment weapon and is designed to eliminate specific and known targets or threats. Hence the reason why, “RADIUS”, does not apply to this weapon.
Due to its precision nature, you must allocate multiple targets via fire at point; if you are trying to destroy numerous targets in a given area. The attached mission attempts to replicate that.
cruisemissiles.miz

8 Months ago an alllied director unit was added to DCS to enable the QF3.7 to fire on axis aircraft. It is under CATEGORY Air Defense - TYPE Allies Rangefinder (DRT). It must be part of the same group as your QF3.7 batteries. Here is an example mission with it working. Cheers
QF3.7WORKING.miz

You have no farp vehicles in your mission. You will need a "Truck Bedford" parked near the FARP. https://youtu.be/tt71nMY8n1w

Hi Elwood Blues, In both of the 4-Ship flights or sections all the aircraft loadouts are overweight. As soon as that issue was resolved the AI starts to taxi for me in OpenBeta (Both Spittys and Ponys). Attached is an updated version of your mission. Hope that helps, cheers. 
Amended-Elwoods WWII Caucasus Missions Ver F.miz

Good morning Gentlemen, Thank you for your reports and could you please do me a favour and test the mission with "CIV TRAFFIC" off in your personal settings and confirm if this this resolves the train and smoke marker visibility issue? Many thanks.