I love Fall of Saigon and I remember
@Petter-Pang! also loves it. I also remember Tina liked it.
I don't think most people hate it. Its very few but very vocal complainers. Majority of the players quietly play along and enjoy it and sometimes even ask for repeating it before it ends; albeit unsuccessfully because in my experience, some admins also don't like Fall of Saigon, Cedar Falls, La Drang, Lang Vei, Con-Thien, Irving, Warden type of maps unfortunately.
Reason 1: Because they get slaughtered by the (guided)-missile truck/vehicle BDRM. In the right hands it can wreak havoc on the Blue team. Nothing can come near the NVA main, or any NVA flag or near the BDRM with a skilled operator like
@Jum_P myself, and a few more. Not even a slightly damaged AC-47 Spooky airplane/bomber. Fortunately the AC-47 Spooky can withstand a couple of missiles before blowing up. But this is the ONLY map with BDRM and AC-47 unfortunately. Why hate it?
Another reason I think some people hate it is because of the perception that flags are far apart or its a so called (large map). Ironically, the same people who complain about Fall of Saigon being too big, rarely complain about Hastings and Flaming Dart which are even larger maps. There are plenty of Jeeps and even a few boats to go from 1 flag to the next but they still complain.
A small minority probably hate it because the mains are very easy to capture and have no defenses except tanks. The Blue main can be accessed through water from the West even though there is a moat around it. Once the main is taken, the sole aircraft (Spooky) doesn't spawn anymore and I rarely see successful recaptures of the Blue main. The Red-NVA main is even worse. It is surrounded by a forest on three sides from which Blue players can easily infiltrate and capture it, OR paradrop from the AC-47 Spooky (wink wink Nagi). Again, once the Red main is captured the BDRM doesn't spawn anymore and I rarely see it being recaptured.
Finally a very small minority of very vocal haters of this map are also the same ones who are very good with assault rifles (one shot killers). They get their asses handed to them by the BDRM's missiles or bombs from the AC-47. They prefer well lit city maps to score higher kills than maps such as Fall of Saigon, Cedar Falls, Saigon-68, Warden, La Drang, Lang Vei, Con Thien, and Irving which have all types of combat such as underground, tank, boats, airplanes, helicopters, infantry, artillery, etc. They tried to get these maps removed several times and failed.
Suggestions: I think the mains should either be uncapturable, OR main flags should take a very long time to capture like Albany, OR provide spawn boxes and tunnels (again like Albany) that would reappear even if they get destroyed near main flags. This would allow players to easily recapture unguarded mains. Also add tons of more Jeeps, Vespa's and trucks so every single player can individually go to any other flag quickly. It will also help if these Jeeps and Trucks have higher tolerance to damage. Default BFV Jeeps and trucks are too fragile and get easily damaged with small bumps or under fire.
I believe Fall of Saigon is terrific map just the way it is, except a few minor changes and additions as
@agathyus suggested. It gets a bad rap