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I don't see anything good coming out of this suggestion of spawns.
As YoMama already showed you there are multiple ways to get out of spawn. (Don't know what that green line means tho)
While it's true that most players don't know about either route, memorization of it takes like 2-4 turns, anyone with a brain would just drive and adapt well or scout early (either as vice or civilian) for suitable places and routes. Besides if anyone even played the singleplayer they would know alternative routes, and if not they have to face a disadvantage.
It's also true that the airport is not known and it surprised me when I came to know of it as well.
Server can mention the secret airport in it's Random Tips.
And Flint County is such a map with so much height difference between terrains that getting into the woods or the mountain is a bonus spot which buys you 2-3 minutes atleast unless you are seriously outnumbered like 4:1.
So getting past the urban spot to more rural areas is a challenge with reward, of which there are multiple routes. (as already shown by YoMama)
Armor and Health spot change is unnecessary too (I get that it's cause of Civilian spawn placement due to new Presi Spawn) one of the most times when secondary refills are accessed is when there is a deficit of both, so both are placed on the same level of ground and not so far apart, so one can refill both. Placing one on the freeway and one in the mountain is just impractical.
Cops moving out from angel pine is bad cause they have less area and cover to protect their spawn from intruders.
Swat position will just make them more useless as they should be near the cops.
Most disadvantageous position is the Terrorist spawn, they are pinned down. If they go main armor, they won't retain much of the advantage since SWATs can flank them, and the incoming cop wave can kill them off, go west and get encountered by cops who are far more deadlier than SWATs (unless there is a Shotgun-Tec9-Deagle Master).
Current positions offer them about equal convenience to both Main Armor and Secondary Armor/Health Spawns. I don't see this being a possibility in your spawns. Secondary Armor is a major thing that the server needs in every map.
Not to mention it will also encourage Cop vs Terro DM more than going after president.
If you suggest boats and aircrafts then it's sorta impractical, boats are limited and carrying teammates in it is always a bad idea unless there is a skilled boat driver who knows when to drive it or and when not. Aircraft is super limited since due to the spawn being so small sparrow is the only option, which is bad for main armor, it won't be balanced at all in most situations. If Cops>Terro, It gets shotdown by mere M4, If Terros>Cops, Cops barely holding out the main armor gets finished by Helikills.
And why should being not creative be compensated on tho? Won't limitations actually kinda push them to look for alternative and better ways to solve a problem?