Guild Wars 2

we have one mode, conquest mode.
6 maps! for this conquest mode.

Battle of Kyhlo
Forest of Niflhel
Legacy of the Foefire
Raid on the Capricorn
Skyhammer
Spirit Watch
Temple of the Silent Storm

let the 7th map be a “assault and defend” game mode map?

a simple one would be like the DeGroot Keep from team fortress 2
http://wiki.teamfortress.com/wiki/DeGroot_Keep
(it is still a control point game mode though)

to quote some text from there:

The map is a relatively small capture and defend stage. At the beginning of the round, BLU must capture the town (Point A) and cliffside (Point located at ground level to the sides of the castle. Because the castle gate is initially closed and impassable, RED must mount a defense from the top of the castle. Defenders can fire projectiles from above or leap off the walls to engage BLU directly.

Once the first two points have been captured, the castle gate will rise and allow access to RED’s keep (Point C) located at the end of the castle courtyard. BLU will then have a certain amount of time (60 seconds by default) to capture Point C, indicated by an on-screen timer. The gate will only close once the timer expires and Point C is clear of any capture progress. Once the gate closes, Points A and B will need to be recaptured before another attempt can be made on Point C.

Players can shoot projectiles through the grills of the castle gate or arrow slits in the towers. Braziers and torches located near the team bases can be used to set the Huntsman’s arrows on fire for additional damage.

tl; dr,
assault and capture side 2 points to open the gate, allowing entry into the keep.
capture the middle point to win the round.

assault team spawns outside the keep.
defend team spawns inside the keep.

I think it could work, as long as they made sure to put secondary things into the game to still promote some kind of build diversity, instead of the defending team just being 5 ultra bunkers.

well i think this could work as a hot join 8 vs 8 map,
not 5 vs 5 arena map though.

http://wiki.teamfortress.com/wiki/Control_point_timing#Attack.2FDefend
4 pips control point maybe?
just to speed up the capture

refer
http://wiki.teamfortress.com/wiki/Control_Point_%28game_mode%29

Offense

Control points are captured by standing on top of them. The speed at which a control point is captured depends on how many players from the capturing team are present on the point: two BLU players capturing a RED point will capture that point faster than only one BLU player would. Scouts count as two players, as do Soldiers and Demomen wielding the Pain Train. There is a limit on how fast a Control Point can be captured (see Control point timing).
Defense

If players from both teams are on the same, unlocked control point, that point is said to be contested, which means no progress is made toward the point changing team control. When players from the offensive team are removed from the point all of their progress is lost gradually over time, not immediately.

I like the idea but it worked better in FPS games like Front Line Force mod or TFC where playerskill matter and not just picking mechanically effective builds.

I think i’d rather them focus resources on KOTH and TDM (with objectives) first. Not that I would not enjoy the mode, but I would put it as lower priority.

…you basically took my thread and split it up into 2. The reason my suggestions make sense is because they are combined together.