Tried doing what peperoni said and it didn't work. Knowing where I need to place towers would help. I put them close to the core, but I get overwhelmed before the first walker patriarch comes. I refuse to believe you beat this with two focus towers as your main damage. I'm even using the highly recommended Skye, plasma rifle/gatling laser solo build and that's not helping much.

Place one focus tower in the empty area, at the front centre. Fully upgrade 2 AR-mine dispensers and place the mines on the focus tower. Wen the first walker patriarch comes it should attack the focus tower, smash it, and trigger the mines. It's an instant kill. Don't use mind control because the super heavy boss will target controlled lumes and cause massive damage to the maze. It's very easy beating this map with 5fos solo this way. I uses a couple of focus towers, 1 AA, 2 AR dispensers and a range tower.

i build a 3x3 killing zone and let the enemy go soround them and kill the ape imediatly if he comes and... it works in first try

I'm going to try this maze xD

Indeed. Well, when playing solo I lure him to the first lane and let him destroy it completely. Rest is up to my choice of towers.

Regardless which maze I used so far - it always depends on the first Walker Patriarch, while the second is easy to handle.

Dangerous lines because of the Patriarch.