Now in the game, most helicopters have Generation 3+ thermal imagers with a full HD picture. However, this is a lie, because almost all of them were developed in 1980-2000, when the 3rd generation matrices were not used.
The most popular example is the AH-64. ASQ-170 does not have a 3rd generation thermal imager, it appeared only in the updated version of M-TADS, which is not installed on the helicopters presented in the game.
This applies to almost all helicopters, I just gave the most obvious example.