Here's an updated XML with a score limit rather than needing to hold the hill a minute and a half (like you wanted). There's a couple of things I wanted to briefly mention after taking a look at the map:
First off, not a ton of cover, the lanes around the center are flat with few options for cover. It seems really easy to bow down the enemy team from that top mid point. It also seems simple to spawn kill, there's not a ton preventing the enemy team from rushing up to the other team's spawn or shooting them from the high ground. (I know there's resistance / instant health in the spawn load-out, but it still feels limited with just that alone).
The tower at mid seems a little clunky / crowded. It almost seems too simple to jump from the top to the hill at the bottom, or to simply bow spam from the second floor with little to no easy form of retaliation from the team below. I'd recommend reworking it in some way. Maybe bring the spawners from the sides to the top floor? The arrow spawners are really close to the edge of the map as is, you may want to look into moving them or tweaking the area surrounding them so players won't die if they get shot backwards 1-2 blocks.
Lastly, if the hill is uncontested, at 550 points the game will last for just over 9 minutes. It may be better to lower the limit to something around 300-350, considering the hill will probably pass between both teams throughout the map and therefore increasing the time it takes for the match to end.