IG is such a pain to play, honestly Guardsmen require such an absurd amount of micro just to make barely usable I feel like people have been lying that they are good once you get upgrades and attach commissars and priests, this is a massive cost AND micro investment, and I hate scrambling around attaching these guys to this, spamming reinforce here, plasma guns there, when the guys die instantly and I have to keep clicking through a trillion units that get melted away and are such a pathetic worthless te...

No health, low damage, very expensive for what it is, requires static deployment (no mobility), extremely vulnerable, easy to miss and forget about, requires upgrade to be even remotely useful.

I need some tips for campaign for the imperial guard i am on normal difficulity

I would say that some factions are not handled as well by the AI than others Notably Space Marine and Ork AI can be iffy ive noticed. Space Marines are usually useless the entire game, I have rarely seen them actually fight anyone competently. Orks can snowball quite hard but the AI is stupid early game, they dont make units or they commit to a stupid rush, opening them up for a counter attack. The Necron AI on the other hand seems quite strong. They often do early rushes which can be effective, but ma...

My personal favorite is the Bugfix mod.