There is one thing i am never fast enough: It's when i'm in a building and nades are incoming... I can't never exit before the building is obliterated. Those random building crits must go, they are no fun at all. Too much random events or critical hits are to be minimized in any serious strategy game.
Random crits on anything must go, to be honest. Immobilizing a Tiger at full health with a ram from the front, flame crits on full-HP models, flamethrower exploding on the first shot, rifle nade building crits - all of the extreme cases must be taken out of the game because although they do not happen often, they take all the fun out of the game when they do happen.
I don't mind light RNG in the form of mortar shells, firefights, and even basic engine damage crits on fausts or nades, but these extreme cases that happen randomly add no value to the game.
Just yesterday I had a flamer engineer crit 3 grenadier models on the first burst (grenadiers at full HP). Saw it happening and couldn't even retreat fast enough because the last guy decided to stand there in front of the flamethrower jacking off. This outcome is not warranted because the enemy player did nothing more than attack-move his engineer - the game decided the rest. Winning the game needs to be based off of making good plays and proper positioning, not attack-moving and and hoping for the best.