GTA:VCS various duping stuff tests on PSP

2nd island x2 mission tests/mission x + (side)mission y tests following any% no duping route:

[Reni] Accidents Will Happen x2 - infernus is getting destroyed on 2nd time you pick the mission, thus failing it and automatically game forces you to pick up mission third time, causing game crash.
[Lance] Blitzkrieg x2 - can be duped and passed, but doesn't skip "Turn On, Tune In, Bug Out" for some reason.
[Mendez] The Mugshot Longshot x2 - crashes the game before loading cutscene with Vic and Lance walking out of the mansion
[Mendez] Hostile Takeover x2 - can be duped and passed, skips "Unfriendly Competition".
[Mendez] Unfriendly Competition x2 - can be duped and passed, skips "High Wire".
[Lance] Turn On, Tune In, Bug Out x2 - can be duped and passed, skips "Taking the Fall".
[Reni] The Colonel's Coke x2 - can be duped and passed, skips Kill Phil. Might be an unstable dupe because of different mission before it being duped, or because of the sparrow spawns possibly being glitched when you skip meeting Gonzalez cutscene
[Reni] Kill Phil x2 - no info on that atm.
[Gonzalez] Home's on the Range x2 - no matter at which angle and with which timing you try to pick up marker first time to trigger mission pickup 2nd time while Vic walks, fade in kicks in too fast and doesn't let you dupe the mission properly. After you complete the mission once, you can do it again right afterwards, but it does nothing, as "Purple Haze" is still coming next.
[Gonzalez] Purple Haze x2 - can be duped, but will crash when you go to the payphone to call Gonzalez mid-mission, after receiving double pager message from him.
[Lance] Taking the Fall x2 - no info on that atm.
[Reni] Say Cheese x2 - crashes the game immediately after you pick up mission 2nd time.
[Lance] White Lies x2 - crashes the game immediately after you pick up mission 2nd time.
[Lance] Where it Hurts Most x2 - can be duped and passed, but doesn't seem to be skipping "Blitzkrieg Strikes Again".
[Reni] Kill Phil: Part 2 x2 - can be duped, but i have no idea about passing it, since i failed the mission because Vic couldn't target some of the goons in the last room because of the weird hitboxes of double boxes or something like that.
[Mendez] High Wire x2 - can be duped and passed, it is not known yet if it skips "Burning Bridges" or not. Double maverick spawn requires you to unflip the one you're supposed to get into before it blows up, which is rather difficult. Might cause the game to become even more unstable than usual, but there's no proof of that.
[Diaz] Steal the Deal x2 - crashes the game immediately after you pick up mission 2nd time.
[Diaz] The Exchange x2 - crashes the game immediately after you pick up mission 2nd time.
[Gonzalez] Farewell to Arms x2 - can be duped and passed, but kinda obviously does nothing, even another blue marker for 2nd truck disappeares by the time you complete the mission.
[Mendez] Burning Bridges x2 - softlocks the game and then crashes it on the title frame after mission gets picked up 2nd time.
[Lance] Blitzkrieg Strikes Again x2 - crashes the game immediately after you pick up mission 2nd time.
[Lance] Lost and Found x2 - can be duped, but i have no idea about passing it, since when you arrive at the hospital and go to the air ambulance you get double spawned again and it's pure rng whether you'll get into the one falling down the roof or will simply have 2nd one catching on fire right next to you and damaging your heli. I managed to get only half of the damage from the explosion once by getting out of the heli and getting in few seconds after, but i still got crash on the cutscene where we save Lance and i have no idea if skipping it would've changed anything or not.
[Diaz] Domo Arigato Domestoboto x2 - crashes the game immediately if you pick up the mission on 1s left on rampage timer and trigger it right away or you're getting softlocked on the view outside of Diaz's mansion while having cutscene dialogue subtitles playing by if you're picking mission up 2nd time with a different timing.
[Reni] So Long Schlong x2 - can be duped and passed, skips "In The Air Tonight". Requires specific timing for the dupe to work. Might cause the game to become even more unstable than usual, but there's no proof of that.
[Reni] In The Air Tonight x2 - no info on that atm.
[Lance] Light My Pyre x2 - no info on that atm.
[Diaz] Over the Top x2 - crashes the game immediately after you pick up mission 2nd time.
[Diaz] Last Stand x2 - no info on that atm.

Other stuff that was tested:
- Watersports x2 - can be duped and passed. Duping this skips 2nd lap on all the courses, though this side mission has to be duped twice, because game doesn't remove duped ramps from all the previous courses which leads to you being stuck on a bugged spawn on course 6. Best duping choice will be doing 1-4 courses duped, course 5 normally and then 6-8 duped. Another important note that courses 7-8 become really annoying and difficult because of large amounts of ramps from previous courses and with the duping once you have fall off the jetski you fail the track instantly (because 30s timer runs for both jetskis that are spawned at the start of the track) and you only have 2 attempts to pass most of the tracks, because 4 jetskis at the start result in you being stuck and with track 8 you have only one try which makes this track pretty slow.
- Sanchez Time Trials x2 - can be duped and passed, same as with watersports, except you don't get punished by bad spawns this time, and none of the duped bikes get despawned by the time you're done with all the trials, so you can have something to drive off.
- Quad Bike Time Trials x2 - can be duped and passed, same as the two above, except at the start you're getting thrown off of your quad bike which costs you a bit of time, but even without it duping this won't be worth it because setting dupe up probably will take longer than all the timesave you can get from skipping 2nd lap on all the 4 courses, unless you somehow pass the rampage fast enough.
- BMX Time Trials x2 - can be duped and passed, same as three above and you also get thrown off of your BMX at the start, but unlike Quad Bike Time Trials duping this should be worth it. (Combining any of these 3 time trials with each other results in game crash)
- Crash! x2 - can be duped, but doesn't do anything useful.
- Beach Patrol x2 - crashes the game immediately after you pick up this sidemission 2nd time.
- Mashin' Up The Mall x2 - can be duped, but doesn't do anything useful.
- Swinger's Club x2 - no info on that atm.
- Vice Sights x2 - drops "Fun" meter down really quick after you start the mission 2nd time, so this isn't useful at all.
- Phil's Shooting Range x2 - no info on that atm.
- Land Sea and Air Ace x2 - can be duped, but doesn't do anything useful.
- Crims on Wings x2 - can be duped, but doesn't do anything useful.
- Haiti Hover Race x2 - can be duped, but doesn't do anything useful.
- Harbor Hover Race x2 - didn't try that, because it should be the same as the other hover race.
- Skywolf x2 - can be duped, but doesn't do anything useful.
- Playground on The Town x2 - crashes the game the moment you pick up the side mission 2nd time or destroys the bike under some conditions.
- Playground on the Point x2 - crashes the game the moment you pick up the side mission 2nd time or destroys the bike under some conditions. (Combining both playgrounds with each other gives the same results. Combining them with other time trials or story missions results in the crash, which doesn't surprise me, since not even a single time mission x + mission y formula worked yet)
- Side missions (Taxi driver/Vigilante/Playgrounds etc.) + buying Phil's concert - only taxi driver originally didn't crash, but didn't give anything useful as well, leaving only "0" counter.
- Also tried two bike races on 2nd island. Doing one of them twice didn't do anything special, i only accidentally started it 2nd time on 2nd lap and simply passed it twice in the end without doing any extra laps. Mixing two of bike races with each other didn't seem to do much either, but i myself missed the opportunity to trigger one of them 2nd time as well so this wasn't tested properly.