@Ed: Obviously Wesker and Krausers special attacks make life easier but as far as the others go I think using the barrels as much as possible is a good start with the bosses .
For example positioning yourself strategically and lurring them close to one .
Also using grenades and long range weapons as they approach and switching to short range when they get near .
The chainsaw meatheads can be taken out quite easily at short range with leons shotgun .
Incendiatary grenades are extremely usefull against the bosses too , in particular the blind baddies on the second level as it buys you some time to aim at the weak spot in thier back .
Don't know if any of this is any help Ed ... hope it has so you can get more scores up for me to beat
