Looking at these guys, the 5 could be really useful in the combined arms era that the setting now finds itself in. Sort of like a proto Malice-XT done right. Actually like the build. Call me a heretic, but I'd almost have preferred LB 2-X with some additional backup weapons to keep the riff-raff off. For general vehicle parking and aircraft lawndarting, range is king :)
The one with the unholy number of pulse lasers may be a product of the PC game mechanics. I remember from MW4, and possibly from MW2, that chain/sequential firing of energy weapons generated less heat than firing all of the energy weapons together. There really isn't a mechanic for that in the table top; staggered volley fire doesn't really cover it either.
A star of 2 x (1) and 1 x (3) and 2 x (5) could make for some *nasty* hole punching + ranged crit-seeking action. Total of eight CLPL with four of 'em tar comp'ed; four clan gauss rifles; eight CLB-5x autocannon; twelve CERML's; and the two ATM-9's for window dressing (and HE ammo). In all honesty, I would probably save the GR/ATM ammo for "priority" targets, the LB 5-X ammo for vehicles, and just use the energy weapon components of that mix.