lmfao. Just a tip, you should probably read that wikipedia article yourself, before you come here and post it as though we'd have no idea what "hitscan" is.
Just like the first poster said, there's the rifle, lasgun, shotgun, massdriver, even the painsaw is hitscan technically.
There are three possibilities here:
1. You haven't actually played Tremulous yet
2. You aren't aware of what hitscan means
3. You have extremely high ping, so high that even hitscan weapons don't seem hitscan to you
Oh, and Juno, that could be two things. I'm no expert on the lasgun, but there might be a slight delay after you click the trigger before it actually starts firing. But most likely it's just due to latency, and having to lead players because of slight lag.