Could you effectively camoflage a moving vehicle? What about the noise it makes? Is it camoflaged over multiple spectral ranges? How durable is the camoflage?
The problem with laser weapons is that even if you can make them work acceptable, they'd be more expensive and less durable than a conventional firearm, for example. Their advantages include not having to worry about bullet trajectories, and the fact that they're 'cool'...
We don't know anything about how xeno-languages would work, obviously, because we've never encountered any. It's certain that they'll have a structure to convey information- like any language- that they would convey a lot of concepts similar to human languages, and that they would probably be structured to deal with the sort of use we have in human languages (as opposed to, say, a computer programming language- an individual can say a short senence, phrase, or even a single word, and another individual would understand what they mean, in context- such a means of communicating is more efficient and less time-consuming than always using complet sentences all the time).
But those languages could have totally different structures in other regards. The means with which an alien species could communicate could be different- for example, they might communicate in an intricate series of chirps, or even use a sort of binary language, like a natural morse code, or they might not use sound at all, opting at least partially for a form of sign-language, for example, or something based on bioluminescence, or perhaps even communication aided by special pheromones.
I doubt that alien languages would be directly pronouncable by humans, just in the same sense that the sounds various animals make can't really be naturally imitated by the human voice. An alien species likely won't even have the digestive system-respiritory system conjunction we have, which would make things differ even further.
But, as for real progress? Well, we might try to better understand how some intelligent animals communicate, or try to figure out what the languages of our ancestors or extinct relatives might have been like- that's a kind of xenolinguistics. But we'll only hear, or see, or feel true xeno-languages when and if we meet another sapient species. Till then it's pretty much just speculation.
