2 week update
+ Gyro compass - just a note about this, even though I mentioned it last time. It has 4 different kinds of drift simulated: earth rotation rate wander, latitude correction setting wander, transport wander, and gyro specific random wander. The FDS button is used to slave the gyro to an internal magnetic compass, which is sensitive to motion. So, be sure to hit the FDS button before taxiing, and if you're in flight make sure you are flying straight and level (hit ctrl+a for the autoleveller if you need to). It's also recommended to input the latitude on the latitude instrument on the lower middle cockpit (mistakenly labelled "magnetic declination") to help offset earth rotation rate wander. I've noticed a bug where the gyro compass will jump a very large amount of degrees, but it hasn't happened often enough for me to track it down yet and I'm not too terribly concerned. This is nasal free.
+ Dead reckoner - in lieu of an INS system, the MiG-21bis had a simpler dead reckoning system. Using the switches on the navigation radio panel labelled "Bearing" and "Distance", it's possible to set an imaginary point to fly towards or away from much like a NDB coupled with a DME. It calculates location based on true airspeed, pitch, and azimuth to the bearing setting. Receiving an NDB or a VOR station will override the bearing setting, and receiving a DME signal will override the distance setting. This is nasal free.
+ RWR - the RWR now works. It is limited based on several factors, such as: pitch to radiation source with respect to the MiG-21's pitch/roll/yaw, anything +/- 20 degrees will not appear; whether the radiation source is behind terrain; the radiation source's radar strength and distance (far away the RWR will blink slowly, close in the RWR will be a solid light); whether or not the MiG-21 is in the radiation source's cone (i.e. is it looking at me?); and if the radiation source has launched a missile at the MiG-21 (OPRF compatible only).
+ Dual R-60's can now be loaded on the outer pylons, through a modification of the payload script and how it handles pylons.
+ ADF and comm radio instruments are not yet functional, but are in place in the cockpit. The next goal is to get these working.
--------------------
Following ADF and comm radio integration, there will be another weapon systems pass including jettisoning, having to arm bombs, multi-bomb racks, multi-rocket launchers, more armament, Kh-66 guidance, Kh-25M guidance (thanks to Leto for making an anti-radiation guidance mode in the guided-missiles.nas script), as well as OPRF-compliant chaff and flares.