In terms of the cover issue you are going through, have you considered a semicircular ring of crouching spartan-height walls merged into the floor, with standing spartan-height open single boxes merged into the floor? Another option is to put a few wall corners merged into the ground to form a box. Some suggestions, I'll DL, and see how it plays out before rating.
For sure much better than the predecessor, I'm glad you did in fact took in some of the suggestions, you've made the map twice as a good with these improvements. With the smooth surface of over-turned boxes there is no interruption of gameplay and with shield doors removed this map is more worthy of having MLG in the title. Now all you have to do is polish your forging techniques and perhaps start a new maps with a more complicated design to it. If you like MLG type maps it would be great for you to continue making them. As you may know there are plently of amazing maps here on FH, search around and be inspired.
Oh trust me I have a list of MLG maps I've looked at. Most of them are crazy. I'm glad people noticed this. I really wanted to implement this into the map.