Greetings be ZHU fans, what little of you there may be left after so long a period of silence!
We are, of course, NOT dead - just impeded by RL (e.g., education), therefore progress has been slower than anticipated. Not to worry, because however slowly, progress is in fact being made. And to show some of our product, and to try and convince the sceptics among you that there's life in us yet, here's a little cameo update fer yewz.
(cameo by SharpShark)
First off, an old favourite: the Ranger. The basic inf of vUSA and ONLY vUSA, this potent soldier is one of the best all-round combat units in the game, being cheap and quick to build and effective against most ground targets, to a degree. Its primary weapon is the H&K XM8, which was initially cancelled but has been revived and put into active duty. It is a compact, lightweight assault rifle that nonetheless packs a rather impressive punch, slightly more actually than the old M16s that the Rangers still used in the earlier campaigns against the GLA. Backing up this effective weapon is the underbarrel XM320 grenade launcher, which has to be requisitioned first; however, after doing this, all Rangers will be equipped with this attachment to their rifle. The XM320 fires potent 40mm grenades in a low ballistic trajectory, allowing Rangers to accurately fire them through building windows in order to strike at any hostile infantry that might be hidden inside; with the training Rangers receive, they can achieve a 1:1 grenade-kill ratio, by anticipating the most likely positions enemy troops may take up. It is also a useful support weapon in the open, especially when faced with large groups of enemy infantry; while the XM8 is more useful for taking out smaller numbers of scattered infantry, clusters or mobs are best handled with a few grenades. As an added bonus, the shaped charge of the grenade is capable of limited armour penetration, allowing Rangers with XM320 launchers to engage vehicles with some limited effect; although it is hard (but not impossible!) to disable a tank with light 40mm grenades, lighter vehicle armour is more vulnerable to them, and converted civilian vehicles like the Technicals the GLA are so fond of using are like paper before the 'nades. Overall, the Ranger is a potent force on the battlefield, especially before large armoured columns and artillery divisions enter the fray, and they are well capable of holding their own against most, if not all, infantry they may face in combat.
(cameo by Kid)
The Close Quarters Battle Specialist, abbreviated CQB Specialist, is a specially-equipped, highly-trained soldier proficient in fighting in urban areas and similar cramped conditions. Their M4A2 carbines may not carry their fire as far as the M16A6 rifles they are based from, and which Marine riflemen still use, but they are optimised for dealing with threats quickly and efficiently, and hence can pour lead downrange faster than the rifle can. Besides this weapon, CQB Specialists are issued a large number of grenades, made from high-tech modern materials and thus compact and lightweight. Fragmentation grenades do exactly what it says on the box, or canister as the case may be; they blow up in a cloud of shrapnel, so small and fast that it cannot be seen by the naked eye, which is dispersed in a dense (yet still invisible) cloud over a large area, ensuring full coverage in all directions. The result: rampant maiming and death to any unprotected person caught in the danger zone. Ahh, the wonders of modern technology. Of course, these can also be lobbed through windows, doorways and other holes into buildings, to inflict even more rampant maiming and death, due to the enclosed space, to anyone inside. CQB Specialists are also issued Flashbang grenades; again, these do exactly what it says on the canister: explode in a relatively harmless but nonetheless rather bright flash with a big accompanying BANG. This has the effect of stunning anyone caught nearby, rendering them unable to do much for a few seconds, so the CQB Specialists can pick them off at leisure. These troops are trained to make the most of an urban environment, and are well capable of taking and holding any dense urban area, so long as it's only guarded by infantry - unless they're backed up by anti-tank infantry. To facilitate rapid redeployment and minimal exposure from cover, CQB Specialists are trained to have almost superhuman stamina, and hence despite the heaps of equipment and weaponry they carry they can run faster than most soldiers. The only downside is that the only branch of the military that consistently delivers volunteers to the CQB programme that are actually qualified in terms of physical condition, is the Marine Corps, and hence these soldiers are rarely seen under the command of anyone who didn't oo-rah when they were of a lower rank.
(cameo by SharpShark)
Finally, the pride of American infantry worldwide, Rambo-esque commando extraordinaire Colonel Burton. Rumours that this highly trained, well-equipped commando has received genetic modifications are rife, as are those that claim that "Burton" is actually a clone (which would explain some things), but nonetheless he is a powerful warrior who can take on pretty much anyone else in a fight and win easily, unless they hang back half a mile and use a scope, but that would be unfair, right? Colonel Burton, whenever he is deployed, always gets the best of the best equipment and weaponry. When doing a job for the Army (e.g., vUSA), he generally carries his trusty XM29 OICW, one of the few left from when the project was cancelled. The XM29 combines the properties of a powerful assault rifle with those of a grenade launcher (batteries- I mean, grenades sold separately), allowing Burton to choose between pumping that suspicious-looking character full of lead or blasting him into tiny little fragments with one of his two hundred dollar, custom-tooled cartridges at ten thousand..... err, two hundred dollar, custom-tooled 40mm grenades containing small octanitrocubane (wikipedia ftw) warheads, each 2.7 times as effective as a TNT warhead of similar size and weight. These warheads are shaped so that the explosion is almost pinpoint, much more so than the similarly-sized XM320; however, this also increases the effectiveness to a point where it can actually defeat tank armour relatively easily. However, the reduced explosion radius makes it unsuitable for killing infantry behind cover inside a building. Besides this awesome weapon, Colonel Burton has a habit of carrying around a large knife (according to sources close to him, he was deeply distraught when his Crocodile Dundee collection was stolen), which allows him to close in on unsuspecting soldiers and kill them without alerting anyone else; while the victim-to-be is aware of the coming attack at some point (sometimes even before the pain starts), the look of Burton ready to kill has roughly the same effect as a pair of headlights on a rabbit, or the stare of the mythological basilisk. Hence, he can kill people in plain daylight in the middle of an enemy base and no-one will do anything about it. Colonel Burton also carries around some of that wondrous octanitrocubane in demolition charge form, allowing him to make buildings and vehicles go BOOM really loud. On some occasions, he has been spotted with a small camera UAV (grenades- I mean, batteries not included) flying around him, presumably to scout the area around Colonel Burton for any enemies that may have hidden in a feeble attempt to avoid the inevitable pain to come. Rumours that Colonel Burton has become a member of a martial arts dojo are completely unfounded; the closest he ever came to martial arts was when he bumped a wiry old Asian gentleman in the street who subsequently flung him bodily over his shoulder; two days later, his house had disappeared "in a shaft of light from the sky". Moral of the story: Don't mess with Burton. 
.....well, that was corny. I hope you enjoyed this update, and please do leave a comment, I do so love it when that happens 
