Vehicle FCS

Current features:
- Rangefinding
- Adjust for wind
- Adjust for tilt
- Adjust for lead/movement
- Autotrack
- Fire gating
- Manual sight zero
- Rate control/virtual joystick aiming mode
- Basic hunter/killer functionality
- Complex sight widget behaviour with control over reticles,zoom,ammo,gun state and more
- More realistic zoom/fov for optics (1x is based on 60 FOV instead of vanilla 28, more sights can have their true FOV  and relative zoom)

Currently supported vehicles:
M2A2 Bradley, features:
- Basic sight function with visible range and changing reticles, manual zero only
- ISU Daysight, 4x 15° and 12x 5°
M2A3 Bradley, features:
- Two axis stabilized sight with rangefinder, wind and tilt correction, lead calculation, autotrack, hunter/killer
- IBAS TV, 4x 10° and 12x 2.67°
- IBAS DVO (day), 4x 10° and 12x 2.67°
M1 - M1A2 Abrams, features:
- One axis stabilized sight with rangefinder, wind and tilt correction, lead calculation
- GPS (Day), 3x 16° and 9.5x 6.2°
M1A2 Sep + Abrams, features:
- Two axis stabilized sight with rangefinder, wind and tilt correction, lead calculation, hunter/killer
- GPS (Day), 3x 25° and 10x 8°
T-72A/B/AMT, features:
- Basic sight function with laser rangefinder and range dial, hunter/killer
- TPD-K1 Daysight, 8x 9°
- TPN3-49/1K13 Nightsight, 5.5x 6.666°
- 1K13 Daysight, 8x 5° (T-72B)
T-72B3, features:
- Two axis stabilized sight with rangefinder, wind and tilt correction, lead calculation, autotrack, hunter/killer
- Sosna-U Daysight, 4x 12° and 12x 4°
BMP-2/BMD-2, features:
- Basic sight function with adjustable range. Has Day and 1st gen night sight. BMD-2 has an additional AA sight.
- BPK-2-49 Day/Night sight, 6x 10° (Day) and 5.5x 6.66° (Night)
- PZU-8 AA sight (BMD-2), 1.2x 50°
BMP-3, features:
- Two axis stabilized sight with rangefinder, wind and tilt correction, lead calculation, autotrack
- Sodema Daysight, 2.5x 20° and 12x 4°
- PPB-2 Daysight, 2.6x 26.5°
CROWS (Abrams and JLTV), features:
- Two axis stabilized day camera sight with rangefinder, wind and tilt correction, lead calculation, autotrack
- VIM-C Daycamera, 45° to 1° FOV (Crows)
- VIM-95 Daycamera, 95° to 1.6° FOV (RS-6)