To finnish with Rosomaks:
681 Rosomak M1 - might actually start at 7/07 (now 8/07) - first uparmoured vehicles entered action in Afghanistan in late July already.
Formations: Rosomak IFV
I've found information about platoon structure and it needs an adjustment, to lower its manpower. The info is taken from one article in Polish "Raport" magazine in 2013 and the other in MOD magazine "Przeglad Sil Zbrojnych" (Armed Forces Reviev) 4/2014, written by a battalion commander (Lt Col).
Current unit
337 Mech Rifle Sec has 8 men - unfortunately, Polish sections carried in Rosomaks have only up to 6 men. It could be 7 only if we artificially split platoon HQ (4). Weapons are correct: UKM-2000 LMG, Pallad GL, RPG-7.
(
In fact, the section has 6 or even 5 men, which we should disregard as some abberation 
The 2013 article says about 5 men, but the battalion commander says "5 or 6", and complains, that the section is "tragically weak" comparing to US one, in terms of riflemen not manning team weapons).
These sections are carried also on BWP-1 (BMP-1), but according to other article in Armed Forces Review 1/2015, sections on BMP are the same. I don't know unfortunately, when 6-men sections were adopted, so 1/100 should remain.
Owing to smaller sections, in Afghanistan Rosomaks were used with only 6 seats to make more room, but I believe we don't need that.
Form. 344 MRV IFV Pl (-) consists of 4 Rosomaks and 4 sections 337. It should be 3 sections and a support section.
The support section consists of:
- 60 mm mortar section (with two men and one mortar #30 - needs new unit)
- 40mm MK19 AGL (unit 097)
I have no idea though, what was used before an advent of Mk19s, which was the first weapon of such class in Poland (they first appeared in 11/07, but for vehicle armament at first, and I also don't know when they were distributed to mechanized infantry).
The article on BMP-1 says, that in a support section it carries five men with 60 mm mortar and 40 mm grenade launcher (presumably rifle-mounted Pallad), so maybe it was the same - and unit 339 Scouts will do? So, there should be earlier Rosomak platoon, until, say 2008, with 60 mm mortar and scouts?
Also from Armed Forces Reviev one might learn, that for "several years", for unknown strange reasons, there are no snipers anymore in mechanized platoons...
BTW: good photos of Polish 60 mm LM-60D mortar are
https://www.konflikty.pl/wp-content/...5%BAdzierz.jpg,
https://cdn-legacy.defence24.pl/defe...eeccec13ce.png (concerning also unit 508 60mm Mortar Sec)
Form. 339 MRV IFV Pl (+) - similar, but differing in Spike section. In fact, Spike missiles
are not used on platoon level in Poland - only in battalion's support company (
http://dziennikzbrojny.pl/artykuly/a...e-tylko-zestaw,
https://www.jednostki-wojskowe.pl/in...spike&catid=16 )
Therefore, this platoon is redundant (as a result we don't need "(-)" in 344 MRV IFV Pl (-), but on the other hand, there should be some difference in name between mechanized infantry platoon and sole Rosomak platoon 329)
Form. 336 MRV IFV Co is correct (three platoons, no extras).
The first article linked above says, that usually AT section with Rosomak-S and two Spikes is attached to the company, but it belongs to support company structure.
BTW, the photo there shows, that Rosomak-S really has no even a pintle MG... (icon and photo like unit 448 Rosomak CC - the photo is the same btw).
Formations: Rosomak APC
Concerning 217 MRV APC class units: 208,672,673- Rosomak M3, 669,670,671 Rosomak M3M.
[deleted - I'll re-edit this section to make it simpler]