I know that 95 % of Estonians wanted every russian out, you can believe it or not that is up to you.I doubt you know what every Estonian wanted.
Relative vs absolute comparisons. In absolute terms Estonia is a security burden, in an era of shrinking military expenditures among key NATO players.
The only one Estonia could possible need military defense from is Russia, and what you list would be a speed bump for them. Estonia is attempting to build a small modern military, but where this leads remains to be seen.
It's not that you're expecting that, it's that you can't help but have that state of affairs. Best case scenario, there will never be a war with Russia, and Estonia will continue to contribute token forces to NATO missions abroad, which will allow the bigger NATO states to contribute slightly less. Worst case scenario, Estonia requires a huge NATO commitment to fend of Russia. I would argue that this is not worth it. I'd argue that the better solution would have been to leave the Baltics out of NATO.
What I personally saw from the Estonian Army Scout Btln during our stay at Tapa was not terribly impressive,
The only air-defense I saw were ZU-23-2s, and even then only on photos (there was also one on display in front of the barracks). The trucks they used were civilian-looking Mercedes trucks painted green, with makeshift wooden benches for troop transport (I doubt those trucks could go off-road). The Galil of one of the soldiers I got to play around with for a little bit was dirty, lacked optics and anything similar to our PEQ-15/16s. Granted these are just personal observations, but they were quite troubling.
Yes of course you can say that we are a burden but consider the fact that if for whatever reason Russia decided to invade europe the Baltic states would be a buffer zone for the west if we wanted to or not, in NATO or not in NATO.For this reason some probably find that it is good to have us on board so maybe we would be a slightly stronger buffer and buy more time. And the few soldiers are not the most importart part of our contribution to the international operations, more important perhaps is our solid political support to the US.
As for being mearly a speedpump that depends on the situation. Each Baltic countrie can become a considerable speedpump if there is sufficient political motivation. Some time ago Estonia proved itself a speedpump too high for the Russian army. Estonia does not want to develop a "small and modern" army, the only purpose of our army is defence agaist large numbers of russian cold war era weapons and for this we need considerable numbers not 4000 professional soldiers like some other Baltic nations have chosen.
Your experience with our poor training is a surprise to me, our soldiers have recieved a lot of praise from many allies on international missions and many of the soldiers there are straight out of conscription. However surely there are some who are better than others and some who are not.
Currently air deffence consists of the same ZU23-s you saw and short range mistral missile system. There is a lot of ZU23-s, too few of mistral though but more will be acquired soon. Mistral has proven very reliable in practice at least, ZU of course is not effective against fixed wing but can be used very well against lighter armour or rotary wing.
Just for information here are other more common weapons in the Estonian defence forces : Zu23 23mm AAA, Mistral short range AA missile, Mapats and Milan II anti armour missile systems, 155mm howitser FH-70, 122mm howitser D-30, 81mm and 120mm mortars, machinguns 12,7 mm Browning, 7,62 mm KSP-58 and MG3, 5,56 mm Negev, rifles AK4 and Galil.And different grenade launchers/ anti armour shots like carl gustav etc. The only armour is APC-s PASI XA180 EST and XA188.
All trucks should be awd so they have limited offroad capabilities, some more some less.