Thanks for the heads up, chaotic.
...Except, I've just upgraded to Windows 7. Don't suppose you know if I'll have issues with that?
Regarding stupid suicides, I wanted to explore more of a level once, but where I wanted to go was surrounded it deadly acid. There was a section of wall jutting out of the acid, so I got out a rocket launcher and blew it up. I thought it'd leave some non-acidy floor for me to walk on, but as it happened it did not, and I melted instantly.
In retrospect, I might have been able to get access through a wall that WASN'T surrounded by horrible acid. So it probably was a pretty stupid suicide.
I love me some shotguns. The combat and double ones, at least. Multiple shots with the combat is extremely useful, and pumping automatically if I move is pretty awesome. The lack of oomph kinda sucks, but even on HMP former- enemies seem to die from shotties at range anyway. Doubles kill practically everything, even at mid-long range, so it's less of an issue. I like to put bulk mods on it anyway, though.
I usually have a chaingun as my secondary - I use it at range and when I don't have time to reload. I've never really got to the point that I get better long-range weapons with enough ammo to actually use them.
I don't really like it - I'm pretty sure I've had former humans live through volleys from it. :\ But it doesn't blow up all the stuff around it like rockets do, so that's cool.
I REALLY like to horde my consumables, like medpacks and stuff. I rarely heal unless I'm like 24%-ish - I just wander around, hoping to find a health globe or other powerup like that. It's probably killed me a couple times - I know I forgot I had a phase pack in an early Cacodemon cave that might've saved me.
Speaking of that cave, I was about to pick up an Overcharge, when a Cacodemon stepped on it so I couldn't get to it. It was vital to my survival, so I FFFFF'd pretty hard. I used a phase device that deposited me in a little one-way-out cave, safe from enemies. I'd picked up a computer map, so I saw something that might save me lower down the map, but I got caught in the open by them and died.