I disagree.
I have tested my own ability to perform white missions with the energy available at any given rank and I feel that the current energy levels balance very well with the expenditure required to complete white kill missions of the same rank as me.
If you want more energy than your rank allows then buy a membership or energy charges. Remember that SplitScreen need an income to further develop this game and indeed simply to keep the servers and bandwidth available to play it.
Respectfully,
Zerukore