So, I've been noticing that guardsmen are rather durable, probably too durable in some cases. Most guardsmen will probably bump their toughness to 3X and flak amour will give them 4 AP, that's about 7 points of soak to start. This probably is only more glaring against lower level foes, as it seems they will have a hard time penetrating this. Guardsman vs Guardsman battles (like the Serveran Dominate) would be rather drawn out. A lasgun does 1d10+3, so they will be need to hit and roll above 4 to do a single point of damage. A storm trooper with 6AP and 4X toughness would be partially invincible.
I mean, the natural solution is to probably break out the plasma/melta guns, but not everyone in the unit can be armed with them. It gets rather silly, maybe?
What's the work around or strategies GMs would recommend?