Video instruction
https://www.youtube.com/watch?v=gM1jM-Qh7H0

Groups:
1 - Act. prop engines
2 - NAF on blades
3 - Take control
4 - Act. turrel gun (use your mouse for control)
5 - Act. gyro stability
V - Flares
Trim - open/closed weapons
VTOL - Up/Down by helicopter.
Q/E - R/L control
W/S - Down by front/Up by front.

History: The B-12 (also called Mi-12, although officially such renaming was not carried out, according to NATO classification: Homer - "Homer") - the heaviest and lifting helicopter ever built in the world. A distinctive feature is the lateral arrangement of the screws on the wings of the reverse restriction, which are driven by four D-25VF engines. The B-12 was designed as a superheavy transport helicopter with a payload of at least 30 tons for the transportation of components of intercontinental ballistic missiles for the Strategic Missile Forces units or the creation of positional areas planned for deployment on terrain without roads with a hard surface.