Right I just have 3 camos left to complete, mounted shots are not that tough to beat and they can help with getting those long shots, I have 50 left to get. I also need about 15 headshots, not worried about this either, I get these by accident in most games.
Long shots are my Achilles heel though, so some quick tips and helpful pointers would be nice.
I don't have any issue getting longshots. My buddy I play with said he does - it's the last camo he unlocks each time. For me it's the opposite - I get long shots very quickly and the last one for me is usually hipfire.
This comes down to playstyle more than anything I think. My buddy is definitely a run-n-gun guy, while I prefer to use AR DMRs and one-shot people. So he has no issue with hipfire kills because he's always fighting people up close and spraying, while I am moving around much more slower and engaging players at medium range when I can. I also switch to a pistol any time I run inside a building, so most of my "panic CQC" kills are done with a pistol, and not hipfiring my AR.
To get long-shot kills, I would just suggest slowing down. Strap on a 3x optic of some kind, and spend more time in each location. Learn where the longer sitelines are on each map, and hold them down for 30 seconds to wait for enemy players before moving. Some players get caught thinking they should always be moving and spend the entire game running around the map like it's a hamster wheel. But if you don't spend any time holding down the longer sitelines, you won't be getting any long-shot kills either.
Just to touch on one detail between the vlk 3 and cronen 3.5
Despite it's popularity I've never been keen on the vlk. It wasnt until I got used to the cronen that I realised that it's the actual graphics surrounding the sight that I really hate about the vlk. I find it very bulky and untidy compared to the cronen and find that it blacks out too much of the screen for me. The reticle on the vlk is nicer, but only a few unlocks in is the simple black cross, which I think is the best to use overall.
I will admit I know very little about the reticles that you can unlock. I will agree - the outline of the VLK is very bulky and can block your vision "around" your target. I think that is a fair trade-off given how absolutely clean the reticle is itself. The default reticle for the Cronen is just too much going on, especially at longer ranges, while the VLK has that absolutely perfect tiny red dot. Are you able to post a screenshot of the black cross Cronen reticle?