On mountain fortress the defenders could easily hold the gate, they could also get outside and hold the area below the wall down to the ruin nearer their spawn as well, so no matter which side the attackers tried to push in, the defenders would have great positions for engaging and holding two flags. The distances were also too far to do a split and could not mutually support each other and holding the castle area also gave you the bridge for attacking onto the flag near the attackers spawn too.
Yes it technically had 5 entrances, but the tiny side entrance near the gate hardly got you anywhere except leaving you open for sudden pushes and the ladder, side gate and back gate entrances didn't even come into it because the defenders could get out there first. The only time I saw anyone do a semi-effective split was orp i think when they put an archer on a saddle horse and moved them to the side ladder, even then it was more effective because they got early kills on us, otherwise its terribly vulnerable to an all in push on the rest of the force once again.
Basically it comes down to two sides of the map to attack on and they are too far apart to safely split without the risk of being heavily punished for it.
Yes it technically had 5 entrances, but the tiny side entrance near the gate hardly got you anywhere except leaving you open for sudden pushes and the ladder, side gate and back gate entrances didn't even come into it because the defenders could get out there first. The only time I saw anyone do a semi-effective split was orp i think when they put an archer on a saddle horse and moved them to the side ladder, even then it was more effective because they got early kills on us, otherwise its terribly vulnerable to an all in push on the rest of the force once again.
Basically it comes down to two sides of the map to attack on and they are too far apart to safely split without the risk of being heavily punished for it.