What is the ultimate size of the server? I heard 150. If that is so, that is 75 per side (more or less). If one battery will take up 40 or so positions, that leaves a cant 35 positions for infantry, not to mention the huge disparity of firepower.
I also noticed that "Companies" are not full companies. (not a criticism, just an observation). If they are going to be scaled down versions of companies, then maybe artillery should be as well. Two instead of 6 or 4.