i agree, i don't understand why there are so few (and by few i mean NONE) servers with the Assault game mode, that game mode is the best part of MTA because it is clear to everyone what he has to do, shooting of team mates is disabled and you actually go around killing the other team with a purpose.
if i compare that to other game modes freeroam is kind of nice, but you can't do much else than create cars and drive around in them, maybe make a little race or something, but it's boring in the long run.
Classic Deathmatch: sounds like fun, but it definatly IS NOT FUN if there are 10 players in the server, all the spawnpoints are in different parts of los santos so you have to drive a loooong way to get to opponents. and then they usually run away in fear or they play like freeroam and go drive up to mount chilliad. in the end out of 10 players in the server 3 are on chilliad, 4 run away instead of fighting, 1 is AFK, 1 is the far east of the city and you are in the west of the city with no car to get to the other side
Capture the vehicle: basically the same story as with classic deathmatch. the area is too big and nobody cares about the vehicle (although if they cared and cooperated it would be great)
Hay: awesome, i played only this for the first week of MTA. but then i got to the top of the ultimate 125 lvl haystack and it was no fun anymore. but great work programmers, genious idea . but you get tired of it after you get to the top
Race: lag
Team deathmatch: similar to Assault, it forces noobs not to kill their teammates and it stops people from leaving a small area. but not enough servers have it.
as a conclusion i would like to say:
-more team deathmatch and assault servers
-less freeroam servers
-smaller spaces for players to move in in classic DM and capture the vehicle (use of the whole map only in freeroam)
-this mod has enormous potential compared to SA:DM, but it's not using it at the moment, i hope that gets fixed when the non-beta version comes out