Call in. A single player mod which plays out at the same time as Gordon and Alyx flees the citadel in Ep1. You take the role of a rebel soldier on a mission to retrieve information regarding the super portal to aid in the building of Dr. Magnussons rocket.
Many thanks to Ludvig Kallin for this great mod.
The game design really apes the orginal half life 2 levels, from the quite linear signposting of the levels, to sections of extremely precarious platform balancing. Some people might be disappointed by this but it's no mean feat to pull the HL2 style off as well as it has been here and it makes for a very enjoyable game.
I found the length great, just right to finish off in a single sitting in the evening.
It's been a while since I played the orginals but it seemed to me there was quite a lot of original content in terms of models and textures. All were of high quality and combined with assets from the games to feel fresh. During the coast section there was a little stuttering, maybe because the environments were too wide ? Still, I did have everything on highest & it didn't detract from the enjoyment.
The biggest flaw with the mod was a really horrfic difficulty spike in the form of the battle against the hunters. Up until that point Call-In had offered no serious challenge at all then suddenly 30 deaths in a row before I finally scraped through. It very nearly made me give up altogether, although I'm glad I persisted. This was probably the biggest factor that marked it out as a mod, that kind of frustration would have been balanced in playtesting.
Still, don't think my criticisms are too serious, this remains a very enjoyable and accomplished slice of gameplay that I would recommend everyone to try.
I quite enjoyed the gameplay and close attention to level design put into this mod. The AI functioned quite nicely in your environments and the difficulty was spot on with the HL2 campaign. I felt a rush through the fight scenes that not many mods successfully pull off.