Griefbringer nails it what comes into m62 cammies.
The colour greatly varied, and they were mixedly use without shame.
But about the later picture: Its a bit satiric finnish surplus stores advert picture, and its portraying quite well finnish conscripts personal equipment from late 1990s or even 2000s, but not 80s.
The composite helmet (in shape quite similiar to PASGT one) was introduced in early 1990s (IIRC, official models are m/91, m/92 and m/96) and didnt arrive to all garrisons until mid 2000s – fex. sappers in kainuu still had to do with old steel helmets in 2004!
Also, the flakvest carried in the picture is standard issue flakvest m/91, dating to early 1990s, tho again, like with the helmet, didnt archieve most of the troops till 2000s.
IIRC, in 1980s Finnish personel in UN duties wore plain dark-green US model(sometimes in UN-blue covers) 3/4 flak vests, no idea were those issue or personal investments. Both are possible options – still, no general issue flak vests were available before m/91.
But helmets: The m/62 steel helmet is propably the most common one for 1980s. Not sure how long those WW2-era "kraut" helmets served (okay, to be excat, the interiors were upgraded in 1955 resulting new type, m/55), but at least till the 1970s. To be noted, m62 helmet cover was also produced for it!
But the webbing – its model 1985 (taisteluvyö m/85). Highly similiar to US ALICE, but not nearly as good. Most of the paddings are inadequate, and the "fast clip" system is way too stiff to be used fast. Im not going to give full list, but even when its in standard load, its quite horrbile to carry. And like with the protection listed above, these didnt make their way to the most of the troops till 1990s. The webbing used from 1960s to (in some god forsaken hellholes of lapland) early 2000s was M/60 – mostly replaced in mid-90s. I was not able to find pictures of it (`cos like the chernobyl, some things are just better after 6 feets of concrete..), but IIRC, it was extremely simplified thin-strapped canvas system, colour ranging from nature white flax to light green.
Other stuff in the pictures: Boots are m91 standard issue (not sure about this – they might be early production m05) but anyway, the only real difference in gaming scale are the speed laces. And in 1/300 scale, well
:D Also, the gloves are 1990s (m91 or m96, cant be sure) issue, known as "noukkarit" from words no-can-do. Well. Yeah. Cos you just cant with them.
But yeah, about vehicles:
It depends. The three-tone sharp edged camo was officially adopted in early 80s (again, cant call excatly, 81 or 83) but like allways, it took hell of a time to reach 100% of units. This didnt even happen to all vehicles where it should have, fex. tracked tractors (AT-S and IIRC, ATS-59 too) were pushed into long term storaging (war time storaging, mostly this mean "being scrapped in coming 15 years due to budget cuts)") before most of them received that paint. The camo included following colours:
Dark green, light khaki green and black – some exceptions can be found, but not from 1980s. IIRC, the official variation allowed also usage of brown, but as far as I know, it was never used. Scheme is still in service, so a quick google will help you too. One note too – nowadays the "light" equipment like trucks and utility cars arent painted to that scheme, but in 1980s they were. Everything from UAZ-469 to D-30 howitzer and XA-180.
Finnish scale model site – 1980s era BTR-60PB
Same site, MT-LBv -though not alrgely used in 1980s
But a word about the cammies – in 1980s, finnish army was still fighting against itself, and in case of war, Im quite sure that at least 1/4 of the troops would have had to go without their cammies. So to be noted, the orginal name of m62 (IIRC) is "naamiopuku, kesä, m62" (literally: camouflage suit, summer, m62) and like a snowsuit before (and after it), it was meant to be wielded with standard woollen(/Sarka) field suit (m/65, or in some less-fortunate positions, m/36 – both plain greenish gray) under it.
Hope this helped.