So as you wanted some tips and trick on mig-21 here you go, i have just little bit edited text, so it maybe out of context in some points, so sry for that:
1.I learned my stuff (the) very hard way by starting that MiG again and again.
In simple terms, you only win if you use the more advantageous aspects of the MiG.
Speed, R3R and radar. It is good enough, you just simply have to back off in time if something in the attack equation is wrong.
Don't rush, listen, plan. Attack only one plane at a time.
If there is a pair don't go there.
If you have asymmetrical load don't even bother.
Fly high and only fly low in retreat for getting home, firing flares at 1350km/h.
Listen to awacs, get direction on target.
Fly high and tip upside down, check radar for 2-3 seconds, find target look where it goes. Enough time not to stall engine, remember a little positive G is better on your engine that 0G.
If it is straight on use R3R, manage distance it has to be right. Fire as late as possible!
If he goes head on flare in case AIM-9 comes from F-5.
If you locked target but it ignores U or doesnt go straight at you use R-60M but keep radar on to track the guy. When you can clearly see him turn off radar to let him think you lost lock and he got away and fire heat-seeker.
And the main thing!
If u merge drop everything you can. If the fight comes down to 400km/h use take off flaps and you can turn with him if not too much speed is lost and AOA is under red.
Don't rush! No more than 4 missiles at a time! Dont take 6!
If you get one guy quickly than you have chance to continue for some more but don't try to take 3-4 in a single sortie.
Use fuel wisely, preserve, be ready to go home with all afterburner.
Use your brain, tactics, and strength of the plane.
You can only win if you train.
Longer engagements with f-5 is soooo much fun, there is a lot more to succeful mission. Mainly fuel, cause that can save you, next is technic of flying itself preserving speed or loosing it where needed! Use aoa guage while rotating with f5 you have to look at aoa as much as f5. And then another thing! Learn to use your straight beam lock mode! This actually is overlooked, but if button is mapped for easy use, its very handy, you will be able to lock target even if it is too close for radar screen oor action is too rapid! Map easy buttons to swap between radar modes! It is very useful even for r60, gives distance and frightens enemies when locked.
Next even if you have for example r60 IR lock think twice! Will missle hit!? Is distance right? Maybe build speed and do yoyo? Maybe go low in trees! Do not make yourself a superman if you have lock it is not the mission! Mission is to hit the other guy! Ofcours gun is VERY effective! It is powerful, so any hit basicly takes out f-5 . Learn that thing and fire close! I get about even kills with guns r3r and r60 infact! Thats because if r60 is used u have already gone in f-5s territory! Thats already is not in your favour! Remember r60 is rear aspect but r60m all aspect so take those! I think already i told more than i should! But have to say i still mess things up and i am mad that i know i could win but did mistakes. Knowing what to do and doing are different things! And admire those situatins when guy knows his thing and i loose, but thats the beauty of it you always can win just have to learn! But main rule fly for not killing the other guy but fly more not to be killed! Mig has higher power speed you always have time to back off if done in time! But if you feel like rembo, you loose! Just keep practcing not to get killed by plane itself, fuel shortage, flameouts, stalls and only then f5's! If you land back even with 0 kills good job! And last dont fly further than u should if u reached bulls keep high with 85-90 percent power and keep circling, no need to go where awacs says! Be smart assasin! Further u go less fuel and less chance getting back fast! But i really would like to swap knowladges on matter, so anybody want pair just gimme message, dont by shy! Mig is very versatile and true multirole, just needs knowladge skill and PATIENCE
Use your r3r, but you have to learn timing, best practice is to shoot two of them in pairs with separation, that way the first missile is fired much further than opponents aim9 so he has to go defensive and will not be able to shoot aim9, but the second one is needed, if the first one misses (it should miss as the distance is high and missile will have no power to track target). As well after two fired r3r you will be right in the merge territory so if you got off your both r3r off the load on wings is equal!
If locket target still goes low and does low level manouvers or doesnt even bother about your lock - fly towards it from high above look for it by checking radar lock position and your pipper zoom in your view as soon as you see your contact, you have options depending on situation, but usuually you should at this point turn off you radar and track target with youre eyeballs, if you want silent kill go for r60m, if you got r3r left, take your vertical scan lock (beam mode or how you call that radar mode) And really fast lock and launch missile, usually target will not react fast enough to do anything about it. But this has to be done fast! Hope this time it is more readable! And as usually i have last one comment use youre flares before aim9 is launched it will greatly increase chance of missile not hitting you, just ther matter that flares end fast this way, so it depends in what kind of sh*^t you are. And the last last one, if boogey is on your six with guns and you cannot shake it offand you are slow (400-500km/h) already but not superslow (300km/h), pull stick hard (wannabe cobra aka dynamic breaking), air brakes out and full flaps out just for brief second then, get back to normal and try not to crash or get engine flameout 4 out of 5 times if f-5 was close enough it will go past you, when it does dont rush in getting your pipper on him, youve just gained advantage, keep manouvaring and you will soon be in position for gun fire. This all has to be done in emergency afterburner mode as far as my knowladge goes, with regular afterburner no significant advantage can be gained in rotating with f-5 but that little extra boost give you that extra that can outmanuver f-5, just make shure you are not full on fuel and your missiles are dropped as well as the fuel tank ofcourse.
Another tip of the day by me
I like this stuff, if anyone wants to fly on same-ish level i would like to pair up.
Gives a lot of tactical advantages.
I would like to learn and to teach be my guest