Game Version number: Experimental 1.2.1.76 (Steam)
Modded?: No

Issue Description:
Most of the preview images relating to groups, characters, and vehicles have an inconsistent quality to them, and they could use improvements. Here are the following preview images that should get updated:

• All group preview images (the ones with the biggest issue are the preview images for the small groups, as the FOV seems to be too high, however, all of them seem a bit too bright and low quality)
• All character preview images (with the exception of most of the special forces and civilian ones, they lack shadows, which makes them too bright, while the sappers have the opposite issue, where there are too much shadows in the images)
• All helicopter preview images (They seem to have the lighting of a very early build of the game, and they are inaccurate. The armed UH-1 uses the unarmed version as the preview image, while both Mi-8 helicopters use the one with rockets, which is not even in the game yet)
• UAZ-469 with roof (It seems to have the lighting of a very early build of the game)
• Soviet platoon leader with the khaki M88 uniform uses the image of the Soviet platoon leader with the KLMK coveralls
• Soviet ammo bearer with the KLMK coveralls uses the image of the Soviet ammo bearer with the khaki M88 uniform
• The way rocket launchers are held looks odd, mainly the RPG-7

An additional improvement could be to increase the resolution of the preview images back to 800 x 600, as the current preview images use 400 x 300, which makes certain preview images look slightly worse (mainly the group preview images)

The following images compare some preview images and show what they used to look like (for the ones that focus on specific images, they are the true resolution for each, so that is why there is a size difference):