Loading demo overwrites "current" savegame. Clear your save directory and unpack the save again, otherwise you will have leftover files.
A few notes regarding your demo:
-practice shooting while strafing and, in particular, aiming while strafing. Enemies suck at hitting moving targets and it allows you inflict damage, seek cover, and make it impossible for enemies to surround you or even make them block each other all at the same time.
-pay more attention to your environments, you missed two quite worthwhile secrets while looking straight at them, in particular, pay attention to ceilings and underwater areas - they are good places to hide secrets, because players tend to not look up at the former and avoid the latter due to limited air supply.
you also seemed to miss a whole row of stimpaks.
-your mowing down guards with puny little blaster was apparently so demoralizing one of them started shooting backwards
nice job!
-enemies that shoot while dying do it in particular direction, instead of desperately trying to gib a dying foe, which effectively pins you in place, just move out of their forward firing arc (in case of enforcers don't stand immediately behind them either, even a step or two away is fine, though). It will allow you to be far more flexible in combat. You can also learn death anims, only one enforcer anim and one guard anim have death spray and they are quite distinct.
For bonus points you can try to make one enemy wander into a death spray like another.
-keep track of solid geometry you can hide behind - you got riddled with holes in the last area, you could have avoided it entirely. Don't be afraid to run away and hide behind something for a few seconds while enemy fires or between your own firing cycles.
-keep track of where are your enemies and what are they doing - why run out of the door straight at spraying enforcer when you can wait a second or two and do it without getting a facefull of bullets?
-do not hesitate - either keep firing at maximum RoF and try to stunlock/kill the target before it can do anything, charge, then deliver full payload from SG/SSG or shoot and vanish behind cover.
-try taking out unaware enemies whenever possible - 2x damage.
-toy with enemies and use levels to your advanage, if an enemy has seen you approaching from one direction, attack him from another using alternative route, then vanish or finish him before he turns around. Be a fucking predator and ninja rolled into one.
-you seem to have this one figured out, but with all projectile (non-hitscan) weapons, possibly except GL which is situational, shoot them in the ankles. There is no locational damage in Q2 so an ankle shot will hurt them just as much as a headshot and it can't be dodged by ducking and haxxing your hitbox.
-if you have problems with health management, delay taking adrenaline until you're badly shot-up and try to heal fully with boxes or adrenaline before grabbing stimpaks. Don't take armour shards if you can hope for better amour than you have.
Other than the last area (with the exception of killing enforcer with blaster - that was nice and pretty efficient), your performance was good. Then you started to try and catch bullets with your teeth. Bwuh?
http://www.filefactory.com/file/c434ebe/n/enf_popamole_dm2 <- here's how you can popamole enforcers at the end of Outer Base without taking much, possibly any, damage (short demo).
